Notes on the installation of the book anti-theft system

The operation and installation of the book anti-theft system is very simple, and the terminal user unit can solve it by themselves. The equipment is debugged at the factory and can work normally when powered on. As for the connection of the wires, it is also very simple: the terminal colors are different, just plug in the corresponding colors. Notes on the installation of the book anti-theft device:

• 1. There should be no large pieces of metal (such as metal doors and iron display racks) within one meter of the installation.
• 2. The distance between the host and the anti-theft door should be more than one meter (sometimes it may not be necessary).
• 3. If there is no report or missed report in the dual-channel installation, you can first connect a pair for testing, and then add another piece.
• 4. Correct the installation position (the third light of the host, the corresponding display value should be small and close to zero).
• 5. The alarm output is 12V, and external expansion equipment can be connected.

How to solve the false alarm of supermarket and clothing store anti-theft devices？

Now the technology of supermarket/clothing anti-theft devices is becoming more and more mature, and the stability is getting higher and higher. (It is not ruled out that some manufacturers still use the technology of a few years ago, and the overall stability will be checked). Under normal circumstances, the early installation and debugging are very important. When the EAS anti-theft device is installed by the master, it is debugged well, and there will be almost no false alarm or missed alarm in the later stage. If there is a false alarm solution in the later stage:

• 1. Check whether there are anti-theft tags around the anti-theft device? Most of the current equipment is a transceiver, and the left and right sides are detected at the same time. The tag signal is very strong and the detection distance will also increase.

Solution: Move the tag away and stay away from the anti-theft door.

• 2. For the acoustic magnetic system, the anti-theft devices of some manufacturers do not match the demagnetization phase, and there is mutual interference between them. There will be false alarms of decoders or anti-theft devices.

Solution: Replace a better decoder, or adjust the phase of the equipment to solve the problem. There is also a distance of five or six meters between the two to solve the problem.

• 3. The supermarket/clothing store next door also has other brands and models of anti-theft devices. Different brands and models of devices may interfere with each other.

Solution: Adjusting the phase of the device can solve the problem. Most acoustic and magnetic systems now automatically match the phase.

• 4. Check if there are other electrical devices next to it. For example, some switching power supplies will interfere with the equipment.

Solution: Remove the switching power supply, or replace it, or move it farther away.

• 5. Check the power connection method of the anti-theft device: Is it a separate power supply from the distribution box? Are there other large electrical devices or frequency conversion devices connected to the same power line?

Solution: Reconnect the power and eliminate the interference source. Or turn on and off all switches in the distribution box one by one to check whether a certain power supply interferes with the equipment. The above methods can generally solve the problem. If it still cannot be solved, there may be a problem with the motherboard, and you need to contact the manufacturer to replace the motherboard.

EAS electronic anti-theft system for goods is used in shopping malls for anti-theft applications

After 40 years of development, the EAS electronic anti-theft system for goods has evolved from a single principle and a single product in the early days to a wide variety of different principles, which can meet the needs of different types of stores such as department stores, supermarkets, specialty stores, and libraries.

• 1. According to the protection form, it can be divided into vertical system, concealed system and channel system.

The detection device of the vertical system stands conspicuously at the entrance and exit of the shopping mall. In addition to the detection function, it also has an obvious deterrent effect. The concealed system is to install the system under the carpet or ceiling at the exit, which does not affect the overall environment of the store, and can also play an anti-theft protection role, meeting the needs of the store owner for both beauty and anti-theft. The channel system is to connect the EAS system with the cash register at the exit of the supermarket to form a channel protection, which is an effective way to achieve supermarket anti-theft.

• 2. According to the detection signal method used, it can be roughly divided into radio system, electromagnetic wave system, microwave system, frequency division system, intelligent system and acoustic magnetic system.

(1) Acoustic Magnetic System A tuning fork will only resonate when the oscillation frequency is the same. The Acoustic Magnetic System (AM) applies this physical principle to achieve almost zero false alarm operation. When the Acoustic Magnetic System tag fixed on the product enters the detection area of ​​the system, it will resonate, but the alarm will only be issued after the receiver receives four consecutive resonance signals (once every 1/50 second). The characteristics of the Acoustic Magnetic System are high anti-theft detection rate, almost zero false alarm, good anti-interference, and a protected exit width of up to 3.5 meters. There are two types of soft and hard anti-theft tags, which can protect most types of goods in shopping malls and can be repeatedly demagnetized. Even next to the POS cash register, the system can still work normally. The Acoustic Magnetic System includes vertical systems, channel systems and concealed systems. There are more than 10 models to choose from. It can be widely used in department stores, supermarkets, specialty stores, audio-visual stores, grocery stores, drug stores, and office buildings. (2) Radio Frequency System The radio frequency system (RF) uses radio waves as the transmitting and receiving signals, and detects electromagnetic waves with a frequency range of 7.4-8.8MHz, with a center frequency of 8.2MHz. The interference caused by the tag at 8.5MHz triggers an alarm. The biggest advantage of the radio system is that the system cost is very low and the installation is easy. However, since its anti-theft tag is a ring coil type, the system is easily interfered by some objects, such as electronic products such as cash registers, metal objects, etc., causing the system to falsely report or not report. The radio system has two types of tags, soft and hard, which can protect most items in the mall. The distance between the two supports is generally not more than 0.9 meters, and it is usually used in malls with only one entrance and exit. The radio system has two types: vertical and channel types, which are used to protect department stores, clothing stores, supermarkets, etc. (3) Electromagnetic Wave System The electromagnetic wave system (Electromagnetic System) uses electromagnetic waves as the detection signal. The electromagnetic wave system has the smallest tag, the price is also cheap, and it can be demagnetized repeatedly, but it is easily affected by magnetic or metal materials and produces false alarms. The protected exit width is generally around 0.9 meters. The system will not affect magnetic items (such as audio tapes, video tapes, magnetic cards). The new generation of channel electromagnetic wave system is an electronic anti-theft system controlled by software. It uses digital processing technology to integrate the demagnetization system, cash register monitoring, and closed-circuit television monitoring system. It uses a fast demagnetization board, which can be demagnetized repeatedly, and the system cost is high. There are two types of electromagnetic wave systems: vertical and channel. The application environment is mostly in libraries, bookstores, music stores, hotels, supermarkets, etc.

How to choose a good quality acoustic magnetic anti-theft tag?

Acoustic magnetic anti-theft tags are widely used for the anti-theft of goods in supermarkets and retail stores. The quality of the tags directly affects the anti-loss efficiency of shopping malls. At present, there are many kinds of products in the domestic market. How to choose a good quality acoustic magnetic anti-theft tag? We believe that it is necessary to choose from the following three aspects:

• 1. Reliable alarm performance Alarm performance, as the most important indicator of acoustic magnetic anti-theft tags, mainly depends on the antenna detection distance and frequency. Therefore, in the procurement process, products with accurate frequency and good alarm distance should be selected.
• 2. Good demagnetization performance The typical application scenario of acoustic magnetic anti-theft tags requires that the product has good alarm performance before passing through the cash register, and no longer has alarm capability after being processed by demagnetization equipment. Therefore, when choosing, you should choose products with good anti-attenuation ability, that is, it is not easy to demagnetize during storage, but can completely lose the alarm capability after being processed by standard demagnetization equipment.
• 3. Stable quality Acoustic magnetic anti-theft tags are used in large quantities for a long time in the retail process, so the stability of batch products and the stability of product performance between different batches are particularly important. Therefore, when choosing a partner, priority should be given to manufacturers with a high degree of production automation, large supply volumes, and advanced technology.

What is the difference between the acoustic magnetic anti-theft system and the radio frequency anti-theft system?

EAS electronic commodity anti-theft system, with the improvement of merchants' awareness of anti-theft, more and more agents are producing and selling EAS series products. The current mainstream is: acoustic magnetic anti-theft system and radio frequency anti-theft system. Their main differences are:

• 1. The difference between the working principle of acoustic magnetic and radio frequency:

AM acoustic magnetic uses the principle of resonance of the tuning fork in physics, and the working frequency is: 58KHZ RF radio frequency uses radio wave signals, and the working frequency is: 8.2MHZ

• 2. Anti-interference ability (stability)

The center frequency of the acoustic magnetic anti-theft system signal is 58kHz, and the bandwidth is 57.8kHz to 58.2kHz (0.4kHz), which is the narrowest among all electronic anti-theft systems at present, so it is extremely unlikely to be interfered with and cause false alarms. Strong anti-interference ability and high stability. The center frequency of the RF anti-theft system signal is 8.2MHz, and the bandwidth frequency standard range is generally 7.2-8.5MHz. Because the detection frequency is relatively wide, any frequency generated by the device during operation within the RF detection range will cause the device to alarm. It is very easy to be interfered by surrounding electrical equipment and cause unnecessary alarms, or false alarms. The stability performance is not as good as the acoustic magnetic system.

• 3. Detection distance and detection rate

AM acoustic magnetic detection distance, soft label detection distance: 150cm-220cm hard label detection distance: 200cm-360cm RF radio frequency detection distance, soft label detection distance: 80cm-160cm hard label detection distance: 120cm-200cm The acoustic magnetic wavelength is longer, the penetration is strong, and the anti-shielding performance is good, so the detection rate is higher. The overall cost of the acoustic magnetic system is higher than that of the radio frequency. For users of medium and large supermarkets, high-end clothing brand stores, 3C digital products, etc., most of them will choose the AM acoustic magnetic anti-theft system based on comprehensive considerations of quality and anti-theft performance. Customers with low requirements such as small supermarkets, low-end clothing stores, and convenience stores will consider factors such as cost and cost-effectiveness and choose radio frequency anti-theft systems. The specific choice of product anti-theft system depends on your actual situation.

Should the boom barrier gate be installed as left-fixed or right-fixed?

Whether the boom barrier is installed on the left or right side does usually take into account the driver's position (left-hand or right-hand drive), but the specific choice depends on the actual usage scenario and convenience. Here are some common judgment criteria:

• Driver position: If the vehicle is mainly left-hand drive (the driver is on the left, such as most vehicles in mainland China), the barrier is generally installed as a left-hand fixed, so that the driver can easily operate from the left window (such as swiping a card or pressing a button). If it is a right-hand drive vehicle (the driver is on the right, such as some vehicles in Japan and the UK), the right-hand fixed may be more suitable.
• Traffic habits and site layout: In actual installation, it also depends on the entrance design of the parking lot or community. If the entrance is on the right, the right-hand fixed barrier is more in line with the natural habit of vehicles passing on the right; vice versa. If there are two-way lanes or multiple barriers, it may need to be adjusted according to the main traffic direction.
• Operating equipment location: If there are card swiping machines, ticket machines and other equipment next to the barrier, the fixed direction usually makes it easier for the driver to reach out and operate. For example, if the equipment is on the right, the right-hand fixed barrier is more convenient.

General advice: In mainland China, since most vehicles are left-hand drive, a fixed left barrier is the most common choice, so that drivers can operate more easily from the left window. However, if your specific scenario has special requirements (such as more right-hand drive vehicles or site restrictions), you can adjust it according to the actual situation.    

What precautions should be taken when using clothing anti-theft buckles?

• When installing EAS anti-theft alarms, clothing stores need to use clothing anti-theft buckles. As a signal to trigger the EAS anti-theft alarm, how should clothing anti-theft buckles be used correctly? Let's take a closer look.
• First of all, there is a pin in the clothing anti-theft buckle, and we need to insert the pin into the clothes, so be careful not to prick your fingers.
• In addition, the following points should be noted:
• 1. When inserting the nail into the anti-theft buckle, it is not advisable to swing, insert it diagonally, or use too much force, which will cause the nail to bend and it will be difficult to remove it later
• 2. Clothing anti-theft buckles are generally nailed to the bottom of clothes and pants, so as not to affect the appearance of the goods
• 3. For clothes with thinner materials such as T-shirts, flat-head nails are generally fastened to the paid seams, not directly inserted into the fabric, otherwise it is easy to leave traces of holes and affect sales
• 4. Leather products can be fastened to the fabric of the zipper, not directly inserted into the fabric
• 5. To unfasten the clothing anti-theft buckle, you need to use a magnetic unfastener that matches its magnetic force, otherwise it will not be able to be unfastened normally due to insufficient magnetic force
• There are many types of anti-theft buckles used on clothes, and the most commonly used ones are hammer buckles, hammer buckles with ropes, and shoe supports. If you currently need clothing anti-theft buckles, please consult us.

Why are acoustic magnetic security doors better than radio frequency ones?

• Why are supermarket security doors with acoustic magnetic systems better than those with radio frequency systems? What is the reason?
• Answer: This is because the acoustic magnetic system uses ultra-low frequency technology, which is not easily affected by environmental interference.
• In addition, the detection performance has also been improved.
• Therefore, the acoustic magnetic security door has greatly improved in anti-interference ability, equipment workmanship, and performance.
• It is a high-end product, so it is much more expensive than the radio frequency system's anti-theft device.