Detailed design of the RFID-based smart hotel system

In the hotel VIP customer service system, the RFID tag is used to identify the current location of the customer, and the other application system is provided with a trigger signal to correlate the relevant information of the customer.

The normal operation of RFID equipment is a prerequisite for the automatic operation of other systems. The operation status and failure of RFID equipment require the attention of hotel management personnel.

In the system software, the RFID device management module displays the operating status of the RFID device in a friendly and clear manner through a professional HMI interface. When the device malfunctions or runs abnormally, the system software will issue an alarm at the first time to notify the hotel management. The personnel timely confirm and eliminate the faults to ensure the safe and stable operation of the entire hotel service system.

The system realizes the information exchange and management with the RFID hardware through design and development of the communication interface with the RFID system, and completes the information exchange with the upper application system.

Smart Hotel consists of three systems: VIP to store reminder, floor navigation, and banquet/conference management.

Each subsystem uses the basic structure of RFID as the basis of information. When the card information is recognized, the card reader transmits the card information to the background through the network, and compares the data in the database to obtain the relevant information of the corresponding guest or asset. Then, by querying the number of the card reader in the database, the location where the card is recognized can be obtained, and then the related service prompt information is generated, or the management operation prompt is generated, and the application generated based on the different information is the subsystems. The different features offered.

System functions

1. VIP boot system main features:

VIP personnel information management: docking with the hotel VIP personnel management system to obtain VIP guest related information.

SMS and MMS reminder: According to the VIP level, you can send SMS and MMS to different welcoming guests.

The front desk computer automatically displays: the latest VIP information of the store is displayed on the front desk computer so that the service personnel can greet the guests.

VIP personnel information record: automatically record the time and channel of VIP personnel entering the store.

2. The main functions of the floor navigation system:

Card Management: Connect with the hotel PMS system to get information about in-house guests.

Directions: According to the identified guest information, the customer’s room number is displayed on the integrated LCD screen and the direction of the room is indicated by an arrow; the room door light flashes to indicate the room location.

SMS reminder: When the guest enters the elevator, the SMS will be automatically sent to the floor attendant to prepare for the reception.

3. Main functions of the banquet/conference management system:

Card management features: room card and dedicated conference card and banquet invitation with electronic chip.

Electronic sign-in at the venue: Record and count the attending conference/banquet personnel.

The venue seats are guided; when the attendees hold the room card containing the electronic chip, the conference card or the invitation to check in at the mobile IDS, the mobile IDS display shows the seat and direction.

Report statistics and analysis: After the meeting, the statistical report is automatically issued and analyzed.

SMS reminder: Send the information and quantity of unsuccessful personnel to the conference/banquet organizer by SMS.

Enterprise unattended intelligent weighing system management solution

Unattended weighing software is mainly to reduce the company's overweight personnel, reduce the labor costs of enterprises, prevent the occurrence of human measurement cheating, use advanced technology, combined with software, hardware, control systems, networks, etc. to achieve unattended weighing .

System composition

The unattended platform software is equipped with video surveillance anti-cheat system, infrared positioning anti-cheat system, smart card system, RFID electronic tag number identification system, self-service weighing terminal, handheld PDA to confirm receipt, delivery system, vehicle queuing System, financial settlement, anti-remote control alarm, pound single anti-counterfeiting treatment, tare weight fluctuation control, blanking control and other comprehensive intelligent control systems and anti-caution measures, to achieve unattended weighing in the process of weighbridge weighing, can reduce Measuring personnel, improving work efficiency, saving a lot of labor costs for enterprises every year, blocking management loopholes to recover huge economic losses for enterprises.

System flow

When the car enters the car weighing channel, the infrared positioning system of the vehicle installed at the crossing immediately senses that there is a car entering, and transmits the signal to the intelligent gate and traffic light prompting system in front, the gate is immediately closed, and the signal light turns red. Prompt the driver to drive slowly, and ask the weighing instrument and reader to start working.

When the electronic tag on the vehicle enters the reading range of the reader, after verifying that the "vehicle identity" is legal, the control signal emits the correct signal, instructing the electronic balance to start transmitting the weight information, and the camera is used to monitor whether the vehicle is docked at the designated The location as well as the image of the captured vehicle. If the vehicle is parked properly, the weighing signal can be accepted by the computer.

When the host receives the ID number (corresponding to an identification code) and weight information, it accurately records and backs up the relevant information; then, the system issues a command to the controller, the relay on the controller acts, opens the gate, and the signal traffic ahead The light turns green. The vehicle can drive away from the truck scale passage.

The host transmits vehicle-related information to the data management center, which finally completes the data processing and statistical tasks, and then sends the data to the designated place through the local area network.

System advantage

1. Information collection automation

The weighing data output from the weighbridge and the electronic tag number installed on the vehicle are processed by the relevant device and transmitted to the computer. The computer immediately displays the weight of the cargo carried by the car and stores it in the computer's database. Users can query, summarize, print and other operations as needed to achieve automatic information collection.

2, prevent cheating

One car and one card, the electronic tag is attached to the windshield of the car and has a tamper-proof function. Once the electronic tag is torn from the glass, the chip inside is damaged and cannot be used again. The weight of each weighbridge is strictly corresponding to one card and one car. With the camera's image capture function, the entire system data is guaranteed to be foolproof.

3. Establish corporate image, improve work efficiency and reduce operating costs

The system manages all computer weighing of all units in a computerized network. It can easily measure the weight of the car when it is empty and full load, and know the actual weight of the goods loaded in the car in real time, thus greatly improving the efficiency of the enterprise.

4. Protect the safety of the area and prevent illegal vehicles from entering

5, mobile APP + cloud service, mobile phone to carry out data query, quality inspection and verification, settlement process, the system automatically generates analysis reports, the mobile terminal can complete business approval, dispatch, query and other services.

Vital Applications and Advantages Of RFID Technology

Why is our express delivery always accurate on the route? Why are the books in the school library managed neatly and orderly? Why are some accidentally stolen items quickly tracked back? These have to use RFID technology.

There are two situations in which RFID technology works. One is to receive the RF signal from the reader when the RFID tag enters the effective recognition range of the reader. The energy obtained by the induced current is used to send the information stored in the chip. The RFID tag actively transmits a signal of a certain frequency, and the reader receives the information and decodes it, and sends it to the central information system for data processing.

There are three main categories of RFID technology products:

1. Passive RFID products:

Such products require close-contact identification, such as meal cards, bank cards, bus cards and ID cards. These card types require close contact during work identification. The main working frequencies are low frequency 125KHZ and high frequency 13.56MHZ. UHF 433MHZ and 915MHZ. These products are also common in our lives and are relatively early in development.

2. Active RFID products:

This type of product has the characteristics of automatic identification over long distances, so it is applied to some large-scale environments, such as smart parking lots, smart cities, smart transportation and Internet of Things. Their main work is microwave 2.45GHZ and 5.8GHZ. , UHF 433MHZ.

3. Semi-active RFID products:

As the name suggests, it is the combination of active RFID products and passive RFID products. It combines the advantages of both, and enables the microwave

2.45G to take advantage of the low frequency 125KHZ frequency to solve the problem that active RFID products and passive RFID products cannot solve. Problems such as access control, area location management, and security alarms, proximity positioning, and long-distance transmission of data.

RFID technology application

1. Warehouse / Transportation / Materials:

The RFID chip is embedded in the goods, stored in warehouses, shopping malls and other goods as well as in the logistics process. The goods related information is automatically collected by the reader, and the management personnel can quickly inquire the goods information in the system, reduce the risk of being discarded or stolen, and improve the goods. Hand over speed, improve accuracy, and prevent stocking and anti-counterfeiting.

2. Access control / attendance:

Some companies or some large conferences can identify the sign-on through the door identification system by entering the identity or fingerprint information in advance, which saves a lot of time, convenient and labor-saving.

3. Fixed asset management:

Some places, such as libraries, art galleries, and museums, where assets are large or expensive, require complete management procedures or rigorous protection measures. When the information stored in books or valuables changes abnormally, it will be in the system for the first time. Remind the administrator to handle the situation.

4. Train / car identification / baggage security:

The railway dispatching system of China's railway is a typical case, which automatically identifies the vehicle number and information input, saves a lot of manual statistics, and improves the accuracy.

5. Medical information tracking:

Case tracking, waste tracking, and drug tracking are all good ways to improve hospital service levels and efficiency.

6. Military/Defense/National Security:

The dynamics of some important military drugs, guns, ammunition or military vehicles require real-time tracking.

Seven advantages

1. Strong anti-interference

Non-contact identification, able to work in a harsh environment, with strong penetrating power, can quickly identify and read labels.

2. The data capacity is very large

It can be expanded to 10k according to the user's needs, much higher than the 2,725-digit capacity of the two-dimensional bar.

3. Can be operated dynamically

Its tag data can be dynamically modified by programming and can be dynamically tracked and monitored as long as the object to which the RFID tag is attached appears within the effective recognition range of the reader.

4. Long service life

Because of its strong anti-interference, RFID tags are not easily damaged and have a long service life.

5. Anti-collision

It can read multiple RFID tags simultaneously within the effective recognition range of the reader.

6. High security

The RFID tag can be attached to the product in any form, and the tag data can be password encrypted to improve security.

7. Recognition speed is fast

As soon as the RFID tag enters the valid recognition range of the reader, the data is immediately read, and in general, the identification can be completed in less than 100 milliseconds.

RFID Food Safety Traceability System

System Overview

The “Food Safety Traceability System” uses automatic data collection technology to uniquely identify and link the management objects of the supply chain links such as growth, processing, storage and retail of various product materials.

Once food has security problems, it can be traced through these signs to accurately narrow the scope of the safety problem, identify the problem, and even trace the source of food production.

System functions

The food safety quality tracking and tracing system is essentially a food information recording and transmission system. It plays a role in correct identification, truthful recording and effective transmission of food information, and solves food quality and safety problems. The purpose of tracking and tracing system is to identify Track and trace information about activities related to the origin, processing, transportation, storage and sale of food ingredients. If there is a quality problem with the food, you can use the label layer to track the product to a specific vendor, processor or raw material supplier to determine the source of the food quality problem in order to take effective corrective action. The establishment of a food safety quality tracking and tracing system provides potential benefits for farmers, consumers and society, and is of great significance for stabilizing the food safety sales market and ensuring and stabilizing food safety and quality.

System features

1. Product management system: Through the standardized identification, recording and inquiry of the information of each traceability control point, the information tracking and traceability of products from planting (or breeding) to sales can be realized, and the product can be accurately predicted in advance. The purpose of rapid processing afterwards;

2. Product safety traceability management system: The government regulatory department understands the basic conditions of the production enterprise, product traceability information, raw material sources and product flow;

3. Data exchange platform system: The seller queries the raw materials of the food, the use of fertilizer, production and processing, and quality security inspection.

4. Micro-Mall Shopping Platform: The traceability platform can join various enterprise products, purchase through the traceability platform channel, expand the micro-mart market system, and provide consumers with quality product protection.

Application scenario

The food traceability platform can be applied to the anti-counterfeiting and traceability of alcohol, agricultural products and meat.

Top Ten Problems and Threats of RFID Security

Like other security devices, RFID-devices are not as secure. Although RFID-devices are widely used, the security threats they require require us to resolve them before deployment.

01RFID forgery

Depending on computing power, RFID can be divided into three categories: normal labels; labels that use symmetric keys; and labels that use asymmetric keys.

Among them, ordinary tags do not perform any encryption operations, and are easy to forge. But ordinary tags are widely used in logistics management and tourism. Attackers can easily write information into a blank RFID tag or modify an existing one. The label to obtain the access rights corresponding to the authentication system using the RFID tag.

02RFID sniffing

RFID-sniffering is a major problem in RFID-systems. RFID readers always send information requesting authentication to the tag. When the reader receives the authentication information sent by the tag, it uses the back-end database to verify the tag authentication information. legality,

But unfortunately , most RFID tags do not authenticate the legitimacy of RFID readers . Then attackers can use their own readers to retrieve the contents of the tag.

03 tracking

By reading the contents of the tag, the attacker can track the movement of an object or person. When a tag enters the range readable by the reader, the reader can identify the tag and record the current position of the tag.

Whether or not the communication between the tag and the reader is encrypted, the fact that the tag is being tracked cannot be evaded. The attacker can use the mobile robot to track the position of the tag.

04 Refusal Service

When the reader receives the authentication information from the tag, it compares the authentication information with the information in the back-end database. Both the reader and the back-end database are vulnerable to denial of service attacks.

When a denial of service attack occurs, the reader will not be able to complete the authentication of the label and cause other services to be interrupted. Therefore, it is necessary to ensure that there is a corresponding mechanism for preventing denial of service attacks between the reader and the backend database.

05 deception

In a spoofing attack, the attacker often fakes himself as a legitimate user. Sometimes, the attacker will fake himself as the administrator of the back-end database. If the forgery is successful, the attacker can do whatever he wants, for example. : Corresponding invalid request, changing the RFID ID, rejecting the normal service or simply implanting malicious code directly into the system.

06 denied

The so-called denial is that when a user refuses to admit that he has done it after performing an operation, when denying the sending, the system has no way to verify whether the user has done this operation.

In the use of RFID, there are two possible denials: one is that the sender or receiver may deny an operation, such as issuing an RFID request, at this time we have no evidence to prove whether the sender or receiver has issued RFID requests; the other is that the owner of the database may deny that they have given any request for an item or person.

07 insertion attack

In this type of attack, the attacker attempts to send a system command to the RFID system instead of the original normal data content. A simplest example is that the attacker inserts the attack command into the normal data stored in the tag.

08 retransmission attack

The attacker intercepts the message with the reader by intercepting the communication between the tag and the reader, and then retransmits the message to the reader afterwards. An example of a retransmission attack is that the attacker records the tag. Information for authentication between the reader and the reader.

09 physical attack

Physical attacks send information that an attacker can physically touch a tag and tamper with the tag. Physical attacks can occur in a variety of ways, such as: using micro-probes to read and modify tag content, using X-rays or other rays to destroy tag content, using Electromagnetic interference destroys the communication between the tag and the reader.

In addition, anyone can easily use a knife or other tool to manually destroy the tag so that the reader can't recognize the tag.

10 virus

Like other information systems, RFID systems are vulnerable to virus attacks. In most cases, the target of the virus is the back-end database. RFID viruses can destroy or leak the contents of tags stored in the back-end database, reject or interfere with the reader and Communication between the end databases. In order to protect the backend database, it is necessary to fix database vulnerabilities and other risks in a timely manner.

Seven Applications About RFID Tags With Your Unexpected Idea

Does RFID technology have a place in your business? Regardless of what your business does, it’s a question that might be harder to answer “no” to than you might expect-especially after you’ve checked out the innovative ways it’s being employed currently.

Are RFID tags the duct tape of the digital age? It seems like it. Radio frequency identification (RFID) tags are popping up everywhere these days. And as is the case with the versatile adhesive, clever problem-solvers are using RFID in ways its original innovators couldn’t have possibly predicted.

RFID is an ideal building block technology. Simple, scalable, and inexpensive, RFID adopters are leveraging the technology to answer the questions of “what is it” and “where is it” in an ever-expanding set of instances.

From the beginning, RFID technology displayed a certain knack for versatility. The earliest RFID tags tracked just about as varied a group of items as you could imagine: keys, cows, and nuclear waste. Since then, engineers have further refined the technology-providing an abundance of RFID tag-size, data storage, and power options.

HERE’S 7 FASCINATING RFID USES FOR YOUR INSPIRATION AND CONSIDERATION:

1. FASHION: SMART FITTING ROOMS

Have you already had the smart fitting room experience? If not, you probably will soon. By scanning dressing room items, shoppers can access product data, find similar alternatives, and provide feedback. Retailers in return increase the chances their customers find what they are looking for, collect product insights from consumers, and get access to a reliable anti-theft technology in the process.

2. AMUSEMENT PARKS: NO-SWIPE TICKET PASSES

RFID isn’t just a tool for tracking product. It also provides a nifty access control solution. A local blog covering Orlando area attractions recently discussed how Disney integrated RFID technology into their tickets. The credit-card style tickets eliminate the need for scanning and swiping in ride lines, reducing wait times and lowering staffing costs. Additionally, the RFID-enabled tickets provide park operators a rich source of information for tracking the movement of thrill-seekers throughout the grounds.

3. CASINOS: ROBBERY-PROOF CHIPS

A $1.5M robbery foiled by RFID embedded poker chips again proved the old adage that the house always wins. Loss prevention is a common use case for RFID technology, but not the only one in play at casinos. Aaron Saenz commented: “They can log how much you spend, where you spend it, and use that information to keep you in the game longer with well timed drinks and services catered to your activity. If you’re using high-rolling chips you can almost guarantee that a casino knows what you’re up to.”

4. SPORTS: LOSS-RESISTANT GOLF BALLS

Sick of losing golf balls in the long stuff? Ready to hack away and not worry about straining to scan for the ball? A number of specialized sporting goods providers, are betting that enough people answer “yes” to those questions. Efficiently locating items is one of the core benefits offered by RFID. It was probably only inevitable it would hit the links.

5. GUNS: SAFETY PRODUCTS

The gun control debate often seems irresolvably deadlocked between the dueling imperatives of protecting freedom and preserving security. The idea of RFID tags in weapons and ammunition has been cited as a potential compromise. While it’s been proposed in the media on sites like Forbes.com, few politicians at present have picked up the potentially hot political potato. Nevertheless, manufacturers like Armatix have already begun producing RFID-enabled gun safety products.

6. CAR RENTAL: NO-WAITING VEHICLE RETURNS

While the technologies sometimes compete, RFID complements GPS well in many fleet management applications. Inexpensive, passively powered RFID tags work nicely for localized, on-the-lot tracking, while more expensive, actively powered GPS systems provide a long distance vehicle monitoring solution. Avis Rent a Car’s adoption of RFID in a similar scenario is interesting. With RFID in place to recognize vehicle returns, Avis scored a major customer service win by allowing customers to park in any open spot and go.

7. HEALTH CARE: A HYGIENE SOLUTION

The health care field is rich with RFID opportunities: medication management, optimizing traffic flow in hospitals, and monitoring sophisticated equipment, to name a few. A startup called IntelligentM is looking to make its RFID-enabled dent by tackling the simple, but serious problem of getting health care workers to wash their hands. The technology is elegantly simple: Workers wear a wristband and RFID readers are positioned by the faucets. It’s reliable, unobtrusive, and less expensive than paying a squad of moms to follow nurses and doctors around! What’s not to love?

Adam Bluemner （the article from, RFID Arena）