CN202948462U - Electronic escaping prevention device - Google Patents

Abstract

The utility model relates to an electronic escape prevention device, which comprises an electronic wristband (01) and a handheld device (02). The electronic wristband (01) comprises a power module (10), a GPS module (11), a SI4432 wireless module (13) and an alarm module (14) respectively connected to the CPU module (12), and the power module (10) includes charging and power An indication module (101), a voltage conversion module (102). Handset (02) comprises power supply module (20), GPS module (21), SI4432 wireless module (23), 2.4 inch TFT screen display module (24), EEPROM module (25) that are connected with CPU module (22) respectively, A real-time clock module (26), a keyboard module (27), an SD card module (28) and an alarm module (29), and the power supply module (20) includes a charging and power indicator module (201), and a voltage conversion module (202). The handset (02) collects position information of the electronic wristband (01) wirelessly, and can upload the position information to a host computer through a USB interface.

Description

An electronic anti-escape device

technical field

The utility model relates to an electronic escape prevention device.

Background technique

At present, most of the supervision work in detention centers uses traditional security systems such as video surveillance systems, alarm systems, and access control systems. Simultaneous operation cannot be perfect in the linkage combination of many functions. Moreover, for emergencies that occur during the escort process such as going out for medical treatment or work, such as escape, the police cannot determine the direction of their escape in time, and it is difficult to obtain their route of action, which is not conducive to hunting. Therefore, wireless positioning technology is gradually recognized and popularized by people. The following is a comparison of several commonly used wireless technologies:

Bluetooth technology has the characteristics of fast transmission speed, high integration and reliability, and low cost of use, but its single-point coverage distance is only about 10m, which is not suitable for large-scale positioning and tracking.

ZigBee technology has the characteristics of low power consumption, low cost, wide frequency band, and long battery life. It can be embedded in various devices and also supports geolocation function, but the realization of its geolocation function depends on fixed base stations. , if it is separated from the base station, it cannot be positioned. In addition, its single-point coverage distance is only 50m to 300m. For detainees who escaped outside this range, this technology cannot be used to locate and track.

Wi-Fi technology, the transmission rate is very fast, and can be expanded to be used in data Internet access, voice communication, voice scheduling and video surveillance, etc., and can be used for indoor positioning, but the power consumption is large, the cost of terminal equipment is high, and the installation and use are difficult. It is relatively high, and it is a short-range wireless technology like Bluetooth, so it cannot locate and track detainees who have escaped in places without Wi-Fi coverage.

GPS technology, through the navigation signals transmitted by satellites, can accurately measure the instantaneous longitude, latitude, height and other position information of objects at any time and any place.

It can be seen that although the above-mentioned first three technologies have their own advantages, there are more or less defects in the process of escort and the location tracking of escaped detainees, and GPS technology can just meet this demand.

Contents of the invention

In view of the above problems, the purpose of this utility model is to provide a set of electronic escape prevention device, which is a set of wireless remote supervision system based on GPS technology, which can effectively prevent detainees from escaping, monitor high-risk detainees, trace and follow up violent Incidents occur, and the personal safety of managers and detainees is guaranteed to the greatest extent. In addition, the system can automatically count the number of people in the designated area and the information of the surrounding police officers on duty, dynamically monitor the detainees going out throughout the process, and reproduce the travel route of the detainees on the computer, which is convenient for future management or escape.

To achieve the above object, the utility model takes the following technical solutions:

An electronic escape prevention device, comprising an electronic wristband 01 and a handset 02. The electronic wristband 01 and the handset 02 perform data transmission through a wireless method, and the handset 02 can perform data transmission through a USB interface.

The electronic wristband 01 includes a power module 10, a GPS module 11, a SI4432 wireless module 13 and an alarm module 14 respectively connected to the CPU module 12. The power module 10 includes a charging and power indicator module 101 and a voltage conversion module 102. -blox's LEA-5S GPS chip, the CPU module 12 uses ST's ultra-low-power single-chip microcomputer STM8L101F2P.

Handset 02 comprises power supply module 20, GPS module 21, SI4432 wireless module 23, 2.4 inch TFT screen display module 24, EEPROM module 25, real-time clock module 26, keyboard module 27, SD card module 28 and Alarm module 29, power supply module 20 includes charging and power indication module 201, voltage conversion module 202, CPU module 22 adopts STM32F103VC 32 bit single-chip microcomputers of ST Company as main controller, GPS module 21 and SI4432 wireless module 23 are all connected with electronic wristband 01 The same used in the above, the EEPROM module 25 adopts the 24C08 chip, the real-time clock module 26 adopts the PCF8563 chip, and the keyboard module 27 adopts the CH452 key chip.

The handheld device 02 of the utility model is worn by supervisors, and the electronic wristband 01 is worn by detainees. One handheld device 02 can supervise multiple electronic wristbands 01 at the same time, and one electronic wristband 01 can be supervised by multiple handheld devices 02 at the same time.

The utility model has the following advantages due to the adoption of the above technical scheme:

1. The utility model provides a friendly human-computer interaction interface, simple operation, comprehensive and reliable functions, automatic locking when there is no operation, and password protection for sensitive functions.

2. The utility model adopts GPS wireless identification technology, which can not only realize the supervision of fixed-point crowds, but also realize the supervision of mobile crowds, reduce the labor intensity of the supervisors in the detention center, and improve work efficiency.

3. The utility model adopts a low-power single-chip microcomputer chip, which prolongs the service life of the device and improves the calculation speed of the device; adopts a high-precision GPS positioning module, reduces errors and improves data accuracy.

4. The handheld device 02 of the present utility model can communicate with the special supervisory software of the upper computer through the USB interface, upload the route information of the detainees to the computer, realize the function of reproducing the route of the detainees on the computer, and analyze and study the detainees more intuitively. The movement of personnel is convenient for future management or escape and pursuit. Therefore, compared with the existing common security system, it has great advantages in terms of function and ease of use.

5. The electronic wristband 01 and the handset 02 of the present utility model are lightweight and easy to wear, and one handset 02 can monitor multiple electronic wristbands 01 at the same time, and one electronic wristband 01 can be supervised by multiple handsets 02 at the same time.

6. The working frequency band of the utility model conforms to the standard of the National Wireless Management Committee, and there is no need to apply for a frequency point.

Description of drawings

Fig. 1 is a structural schematic diagram of an electronic escape prevention device described in the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in FIG. 1 , the utility model includes an electronic wristband 01 and a handset 02 . The electronic wristband 01 includes a power module 10 , a GPS module 11 , a SI4432 wireless module 13 and an alarm module 14 respectively connected to the CPU module 12 . Handset 02 includes power supply module 20, GPS module 21, SI4432 wireless module 23, 2.4 inch TFT screen display module 24, EEPROM module 25, real-time clock module 26, keyboard module 27, SD card module 28 and The alarm module 29 and the power supply module 20 include a charging and battery indicating module 201 and a voltage converting module 202 .

The beneficial effect of using SI4432 wireless module 13 and SI4432 wireless module 23 is that its working frequency band conforms to the standard of the National Wireless Management Committee, and there is no need to apply for frequency points; the beneficial effect of using U-blox's LEA-5S GPS chip is that there are 50 satellites receiving Channel, with KickStart function, can realize accelerated start when the signal is weak, positioning accuracy <2.5m, serial port supports UART and USB two ways; use ST's ultra-low power single-chip microcomputer STM8L101F2P and STM32F103VC as CPU module 12 and CPU module 22 respectively The beneficial effect of the main controller is that it has complex information processing capabilities, can quickly receive the information transmitted by each module, and reduces the power consumption of the device, prolonging the service life of the device; using the charging and power indicating module 101 and The beneficial effect of the charging and power indicator module 201 is that the usage of the power can be seen on the screen more intuitively, and the equipment is fully charged in time to ensure normal and orderly work; the beneficial effect of using the SD card module 28 is that it saves the cost of the microcontroller Memory resources, using the USB interface to communicate with the dedicated host computer monitoring software, realize the function of reproducing the route of personnel on the PC, and analyze and study the movement of detainees more intuitively, which is convenient for future management or fleeing and hunting.

The electronic wristband 01 of the utility model mainly realizes the following functions:

1. Use a rechargeable lithium battery for power supply. When the battery power is lower than a certain value, the alarm module 14 will emit a "beep, beep, beep" alarm sound; when using an external power supply or USB to charge the lithium battery, the indicator light will be on, reaching 4.2V , the indicator light goes off.

2. The voltage conversion module 102 can convert the 4.2V voltage of the lithium battery to 3.3V to supply power to the CPU module 12 and the GPS module 11 .

3. After power on, the GPS module 11 receives the satellite position signal, the indicator light flashes, the CPU module 12 reads the data through the serial port, and then sends the data to the handset 02 through the SI4432 wireless module 13, or receives the data from the handset 02 , and send a response tone to the query command of the handset 02.

4. The GPS module 11 includes a 3V button battery, which can ensure that the device can still receive the satellite position signal after power failure in an unexpected situation, so that it can quickly enter the working mode after power on again.

5. Once the detainees leave the control range, the electronic wristband 01 will send out a sound and light alarm, the sound pressure of the sound alarm is > 85dB, and the alarm sound uses the police car alarm sound.

6. When the electronic wristband 01 is pried, the alarm module 14 immediately sends out an alarm and senses the handset 02 at the same time.

The functions mainly realized by the handheld device 02 of the present utility model are as follows:

1. Use a rechargeable lithium battery for power supply. When the battery power is lower than a certain value, the alarm module 29 will send out an alarm sound of "beep, beep, beep"; when using an external power supply or USB to charge the lithium battery, the indicator light will be on, reaching 4.2V , the indicator light goes off.

2. The voltage conversion module 202 can convert the 4.2V voltage of the lithium battery to 3.3V to supply power to the CPU module 22 and the GPS module 21 .

3. After power-on, the CPU module 22 obtains the position information of the electronic wristband 01 obtained by the SI4432 wireless module 23 and the position information of the handset 02 obtained by the GPS module 21 through the serial port, so as to calculate whether the detainee is under supervision or not. Within the range, the warning distance is set at 10 meters and 15 meters, and the discrete value of the range should not exceed ±3 meters, which can be automatically adjusted when the environment changes.

4. In one system, it can accommodate multiple handsets 02, one-to-many and many-to-one, that is, one supervisor can supervise multiple detainees at the same time, and one detainee can be supervised by multiple supervisors at the same time.

5. Supervisors use the handset 02 to remotely control and track the electronic wristband 01 worn by the detainees. Once the detainees exceed the control range, the handset 02 will enter an emergency state, and the alarm module 29 will immediately send out a warning sound and the 2.4-inch The TFT screen display module 24 displays the relevant information of the detainee, and the buzzer on the electronic wristband 01 sends an alarm sound simultaneously. When the detainee returns to the control range, the alarm sound on the electronic wristband 01 is automatically released.

6. When chasing, the handset 02 will automatically switch to the emergency escape function, that is, automatically disarm the original detainees, and only arm the detainees who have escaped. When approaching the escaped detainees, the handset 02 sends out a prompt sound to remind the supervisors to pay attention.

7. It can automatically search for the electronic wristband 01 that has been turned on within 500 meters, and can read and save the number of the electronic wristband 01, that is, ID; if the ID of the electronic wristband 01 is known, the user can input the ID Perform a search query, and at the same time, the electronic wristband 01 responds with a "beep, beep".

8. Perform arming and disarming settings, that is, you can arm and disarm the selected electronic wristband 01 respectively. When the detainee wears the electronic wristband 01, the electronic wristband 01 is powered on and enters the working state. At this time, use the handheld 02 Arm the electronic wristband 01, and the electronic wristband 01 will automatically enter the alert state. At this time, even if the electronic wristband 01 is opened with a key, the electronic wristband 01 will not be powered off, and an alarm will be generated at the same time. The handset 02 At the same time, a warning message will be received. Before opening the electronic wristband 01 normally, use the handheld terminal to disarm, and then use the key to open the electronic wristband 01.

9. The basic information of the detainees is downloaded from the host computer to the SD card module 28 of the handset 02 through the USB interface. Through the operation of the keyboard module 27, some simple information can be displayed on the 2.4-inch TFT screen display module 24, such as the current time of the system, the ID, name, gender, and age information of the detainees, the current latitude and longitude information of the detainees, and the current online number.

10. The CPU module 22 and the EEPROM module 25 can store and record all the events that occur. The number of event records is 6000, and the data will not be lost when the power is off. The event records include the time of arming and disarming, the personnel and time beyond the warning range, and the alarm command The time when it was issued, the time when it returned to the alert range, and the location information of the detainees when they went out for activities or escaped. The event data can be uploaded to the host computer through the USB interface, and further analysis and management of the uploaded data can be realized on the computer to realize human-computer interaction.

Claims (8)

1. An electronic escape prevention device, characterized in that it comprises an electronic wristband (01) and a handset (02); the electronic wristband (01) and the handset (02) perform data transmission in a wireless manner, and the handset (02) ) can carry out data transmission through the USB interface. 2. A kind of electronic anti-escape device according to claim 1, is characterized in that, described electronic wristband (01) comprises the power supply module (10) that is connected with CPU module (12), GPS module (11 respectively) ), a SI4432 wireless module (13) and an alarm module (14), the power supply module (10) includes a charging and power indicator module (101), and a voltage conversion module (102). 3. A kind of electronic anti-escape device according to claim 1, is characterized in that, described handset (02), comprises the power supply module (20) that links to each other with CPU module (22), GPS module (21) , SI4432 wireless module (23), 2.4-inch TFT screen display module (24), EEPROM module (25), real-time clock module (26), keyboard module (27), SD card module (28) and alarm module (29), The power supply module (20) includes a charging and power indicator module (201), and a voltage conversion module (202). 4. An electronic escape prevention device according to claim 1, characterized in that, the handset (02) can automatically search for an opened electronic wristband (01) within a range of 500 meters, and can read And save the serial number of the electronic wristband (01), i.e. the ID; if the ID of the electronic wristband (01) is known, the ID can be input by the user to search and query, and the electronic wristband (01) makes a "tick, tick" Voice response. 5. A kind of electronic anti-escape device according to claim 2, is characterized in that, described GPS module (11) adopts the LEA-5S GPS chip of U-blox, and CPU module (12) adopts ST Company's ultra-low Power consumption microcontroller STM8L101F2P. 6. A kind of electronic anti-escape device according to claim 2, is characterized in that, after power-on, GPS module (11) receives the position signal of satellite, and indicator light flickers, and CPU module (12) reads data by serial port, Then send data to the handset (02) through the SI4432 wireless module (13), or receive data from the handset (02). 7. A kind of electronic anti-escape device according to claim 3, is characterized in that, described GPS module (21) adopts the LEA-5S GPS chip of U-blox, and CPU module (22) adopts STM32F103VC 32 of ST Company One-chip microcomputer is used as main controller, and EEPROM module (25) adopts 24C08 chip, and real-time clock module (26) adopts PCF8563 chip, and keyboard module (27) adopts CH452 button chip. 8. An electronic escape prevention device according to claim 3, characterized in that, the CPU module (22) and the EEPROM module (25) can store and record the events that occur, and the number of event records is 6000, Data will not be lost when the power is off, and the event records include the time of arming and disarming, the person and time beyond the warning range, the time when the alarm command was issued, the time when it returned to the warning range, and the location information of the detainees when they went out or escaped.

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