CN203352581U - Wireless detecting safety system - Google Patents
Wireless detecting safety system Download PDFInfo
- Publication number
- CN203352581U CN203352581U CN2013204471315U CN201320447131U CN203352581U CN 203352581 U CN203352581 U CN 203352581U CN 2013204471315 U CN2013204471315 U CN 2013204471315U CN 201320447131 U CN201320447131 U CN 201320447131U CN 203352581 U CN203352581 U CN 203352581U
- Authority
- CN
- China
- Prior art keywords
- module
- directional coupler
- signal processing
- digital signal
- processing module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a wireless detecting safety system. The system comprises an antenna which is in interactive connection with a data acquisition device through a detecting device. The detecting device includes a directional coupler. An output terminal of the directional coupler is connected with an input terminal of a digital signal processing module through a down-conversion module and an analog-to-digital conversion module in sequence, forming a reception channel. An output terminal of the digital signal processing module is connected with an input terminal of the directional coupler through a digital-to-analog conversion module and an up-conversion module in sequence, forming a transmission channel. An input terminal of the digital signal processing module is connected with an output terminal of the master control module, and the master control module is in interactive connection with the directional coupler. According to the wireless detecting safety system provided by the utility model, the IMEI/IMSI of a mobile station can be detected and identified through a mobile network, and the activity patterns and courses of action of a specific object can be grasped, thereby providing a timely and reliably technical means for the functional departments of public security, customs and frontier defense, and improving the working efficiency.
Description
Technical field
The utility model relates to communication technical field, relates in particular to a kind of wireless sensing safety system.
Background technology
The development of Present Domestic wireless communication technique is rapid, for the wireless network based on cellular technology provides wide covering and good Communications service.Meanwhile, vehicle-mounted type, pocket and hand-held type device that in mobile radio communication, the mobile subscriber uses are referred to as travelling carriage, and the extensive use of travelling carriage is also given social safety and stablized and brought new challenge.How utilizing new technology, for numerous public security cadres and police provide more effective technical search means, is the problem that we must face.
The digital mobile communication system that China adopts at present has GSM and two kinds of systems of CDMA, the communication system of these two kinds of systems has two common ground: the one, and wave point, be not have any fixing physical connection between travelling carriage and network, transmit by wave point while communicating by letter between them; The 2nd, individual event authentication system, network need to be authenticated the travelling carriage identity, and travelling carriage does not need network authentication.
Two characteristics of this of movement-based communication system, can come the requirement travelling carriage expressly to spread out of its international mobile subscriber identity (being called for short IMSI) or International Mobile Equipment Identity code (being called for short IMEI) by self-built network-termination device, and after obtaining the IMSI or IMEI of travelling carriage, with regard to realizing, whether travelling carriage is existed and judged, carry out the statistics of its quantity simultaneously.
The utility model content
In order to reach above-mentioned effect, the utility model provides a kind of wireless sensing safety system, utilize the mobile network to detect identification to the IMEI/IMSI of travelling carriage, thereby grasp mechanics and the course of action of specific objective, for each functional departments such as public security, customs, frontier defense provide in time technological means reliably, increase work efficiency.
A kind of wireless sensing safety system, comprise the antenna for reception, emitting radio frequency signal, and described antenna is connected by detection equipment and data acquisition equipment interactive mode;
Described detection equipment comprises isolates and the directional coupler of power detection radiofrequency signal, and the output of described directional coupler is connected to form receive path by the input of down conversion module, analog-to-digital conversion module and digital signal processing module successively; The output of described digital signal processing module is connected to form transmission channel by the input of D/A converter module, up-converter module and directional coupler successively; The input of described digital signal processing module is connected with the output of the main control module of the control signal of controlling transmit signal power with transmitting for setting, and main control module carries out interactive mode with described directional coupler and is connected;
Described antenna carries out interactive mode with described directional coupler and is connected, and described digital signal processing module carries out interactive mode with described data acquisition equipment and is connected.
Further, also be included as the power module that detection equipment provides working power.
Further, described receive path is equipped with transmission channel second clock synchronization module, the first clock synchronization module that guarantees that signal is synchronizeed; Described second clock synchronization module is between directional coupler and down conversion module, and the first clock synchronization module is between digital signal processing module and D/A converter module.
Further, described digital signal processing module comprises fpga chip, DDS chip and single-chip microcomputer, and described single-chip microcomputer carries out interactive mode with fpga chip and is connected, and the output of described fpga chip is connected with the DDS chip; The output of described main control module is connected with described single-chip microcomputer, and the output of described DDS chip is connected with D/A converter module, and described single-chip microcomputer is connected with data acquisition equipment is interactive.
The course of work of wireless sensing safety system of the present utility model is as follows:
(1) arrange on main control module and transmit and the control signal of power;
(2) single-chip microcomputer of digital signal processing module sends to fpga chip to be processed transmitting of main control module setting, and the signal after processing offers the DDS chip again and synthesizes digital intermediate frequency signal;
(3) digital intermediate frequency signal is integrated by D/A converter module and is converted to analog intermediate frequency signal by clock synchronization module, then be converted to analog radio-frequency signal through up-converter module, the power that directional coupler is set according to main control module sends to analog radio-frequency signal on antenna; Directional coupler feeds back to main control module by the power signal transmitted, the watt level that main control module adjustment transmits simultaneously simultaneously;
(4) signal that will comprise again self information after the broadcasting command that the travelling carriage reception antenna sends sends to antenna;
(5) signal that antenna reception sends to travelling carriage, be transferred to down conversion module through directional coupler and be converted into analog intermediate frequency signal, then be converted to digital intermediate frequency signal through analog-to-digital conversion module and send to digital signal processing module;
(6) after the fpga chip of digital signal processing module receives this digital intermediate frequency signal, extract the information such as position, IMEI of travelling carriage by single-chip microcomputer, finally send to the back-end data collecting device to be analyzed, store, complete the wireless sensing to travelling carriage.
The mechanism that the utility model utilizes GSM, CDMA or other Network Mobility platform positions to upgrade, place fixed or portable detection equipment in the known hotspot position, continue the collection to the IMEI/IMSI number of travelling carriage, and connect by wireless or cable network, number data is transferred to unified back-end data collecting device and is added up, analyze and storage.Thereby grasp mechanics and the course of action of specific objective, for each functional departments such as public security, customs, frontier defense provide in time technological means reliably, increase work efficiency.At first native system investigates the carrier frequency information in current goal zone, then constantly launch the pilot tone of same frequency, synchronously reach paging signal, target MS user in the paging certain limit, by adjusting in the community that travelling carriage switches or gravity treatment is virtual to native system of transmit signal power by Target cell.In the Gai community, by the simulation of the signaling to mobile switching centre and base station controller, complete detecing code and blocking the tasks such as attack, information attack travelling carriage IMSI.
The utility model has following beneficial effect than prior art:
1, the utility model adopts digital signal processing module to have the communication protocol processing unit concurrently, not only can from the signal received, extract the information such as IMSI, can also send meet protocol requirement broadcast singal to bring out travelling carriage from being dynamically connected this system;
2, wireless sensing safety system volume of the present utility model is little, can adopt fixed or vehicle-mounted removable, is convenient to be applied to various places;
3, wireless sensing safety system of the present utility model can receive each standard mobile phone signals such as movement, UNICOM, telecommunications; And, according to the difference of working range, adopt different power to be gathered, and can also carry out the signal strength signal intensity setting, also can select the power amplifier module of different frequency, different capacity according to the occasion of using, reach different acquisition range.
4, the up-converter module in detection equipment of the present utility model, down conversion module are divided into two parts by the signal in whole wireless sensing safety system, part near antenna is radiofrequency signal, be convenient to remote radiation, and be intermediate-freuqncy signal near the part of digital-to-analogue and analog-to-digital conversion module, be convenient to sampling analysis.
5, the utility model adopts D/A converter module analog signal and digital signal to be changed mutually with analog-to-digital conversion module, has improved the processing speed to signal.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the theory diagram of the utility model wireless sensing safety system;
In figure: 1-travelling carriage, 2-antenna, 3-detecting module, the 3-1-main control module, 3-2-digital signal processing module, 3-21-single-chip microcomputer, the 3-22-FPGA chip, 3-23-DDS chip, 3-31-the first clock synchronization module, 3-32-second clock synchronization module, 3-4-D/A converter module, 3-5-up-converter module, 3-6-directional coupler module, 3-7-down conversion module, 3-8-analog-to-digital conversion module, the 4-data acquisition equipment, the 5-power module.
Embodiment
Embodiment mono-:
Be a kind of wireless sensing safety system as shown in Figure 1, comprise for receiving, the antenna 2 of emitting radio frequency signal, described antenna 2 is transferred to data acquisition equipment 4 by detection equipment 3 by the position of travelling carriage 1 and IMEI/IMSI and is analyzed, stores; Power module 5 provides working power for detection equipment 3.
Described detection equipment 3 comprises isolates and the directional coupler 3-6 of power detection radiofrequency signal, and the output of directional coupler 3-6 is connected to form receive path by the input of down conversion module 3-7, second clock synchronization module 3-32, analog-to-digital conversion module 3-8 and digital signal processing module 3-2 successively; The output of described digital signal processing module 3-2 is connected to form transmission channel by the input of the first clock synchronization module 3-31, D/A converter module 3-4, up-converter module 3-5 and directional coupler 3-6 successively; The input of described digital signal processing module 3-2 is connected with the output of the main control module 3-1 of the control signal of controlling transmit signal power with transmitting for setting, and main control module 3-1 carries out interactive mode with directional coupler 3-6 and is connected;
Described antenna 2 carries out interactive mode with directional coupler 3-6 and is connected, and Digital Signal Processing mould 3-2 piece carries out interactive mode with data acquisition equipment 4 and is connected.
Further, described digital signal processing module 3-2 comprises fpga chip 3-22, DDS chip 3-23 and single-chip microcomputer 3-21, and single-chip microcomputer 3-21 carries out interactive mode with fpga chip 3-22 and is connected, and the output of fpga chip 3-22 is connected with DDS chip 3-23; The output of described main control module 3-1 is connected with single-chip microcomputer 3-21, and the output of DDS chip 3-23 is connected with the first clock synchronization module 3-31, D/A converter module 3-4, and single-chip microcomputer 3-21 is connected with data acquisition equipment 4 is interactive.
Above enforcement is not limited only to protection range of the present utility model, all based on basic thought of the present utility model, modify or change all belong to protection range of the present utility model.
Claims (4)
1. a wireless sensing safety system, comprise for the antenna of reception, emitting radio frequency signal, it is characterized in that: described antenna is connected by detection equipment and data acquisition equipment interactive mode;
Described detection equipment comprises isolates and the directional coupler of power detection radiofrequency signal, and the output of described directional coupler is connected to form receive path by the input of down conversion module, analog-to-digital conversion module and digital signal processing module successively; The output of described digital signal processing module is connected to form transmission channel by the input of D/A converter module, up-converter module and directional coupler successively; The input of described digital signal processing module is connected with the output of the main control module of the control signal of controlling transmit signal power with transmitting for setting, and main control module carries out interactive mode with described directional coupler and is connected;
Described antenna carries out interactive mode with described directional coupler and is connected, and described digital signal processing module carries out interactive mode with described data acquisition equipment and is connected.
2. a kind of wireless sensing safety system according to claim 1, is characterized in that: also be included as the power module that detection equipment provides working power.
3. a kind of wireless sensing safety system according to claim 1 is characterized in that: described receive path is equipped with transmission channel second clock synchronization module, the first clock synchronization module that guarantees that signal is synchronizeed; Described second clock synchronization module is between directional coupler and down conversion module, and the first clock synchronization module is between digital signal processing module and D/A converter module.
4. a kind of wireless sensing safety system according to claim 1, it is characterized in that: described digital signal processing module comprises fpga chip, DDS chip and single-chip microcomputer, described single-chip microcomputer carries out interactive mode with fpga chip and is connected, and the output of described fpga chip is connected with the DDS chip; The output of described main control module is connected with described single-chip microcomputer, and the output of described DDS chip is connected with D/A converter module, and described single-chip microcomputer is connected with data acquisition equipment is interactive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204471315U CN203352581U (en) | 2013-07-25 | 2013-07-25 | Wireless detecting safety system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204471315U CN203352581U (en) | 2013-07-25 | 2013-07-25 | Wireless detecting safety system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203352581U true CN203352581U (en) | 2013-12-18 |
Family
ID=49752425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204471315U Expired - Fee Related CN203352581U (en) | 2013-07-25 | 2013-07-25 | Wireless detecting safety system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203352581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401578A (en) * | 2013-07-25 | 2013-11-20 | 安徽信安通讯技术有限公司 | Wireless sensing safety system and sensing method thereof |
-
2013
- 2013-07-25 CN CN2013204471315U patent/CN203352581U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401578A (en) * | 2013-07-25 | 2013-11-20 | 安徽信安通讯技术有限公司 | Wireless sensing safety system and sensing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204119532U (en) | A kind of LTE mobile terminal supporting public wireless network and dedicated network | |
| CN106656827A (en) | LoRa base station router and narrowband Internet-of-things system based on same | |
| CN103152114A (en) | Mobile coordinated radio monitoring method | |
| KR101763326B1 (en) | Apparatus and Method for Measuring Multiple Link Wireless Channel | |
| CN206294350U (en) | Network depth cover type indoor distributed system | |
| CN104243002B (en) | A kind of WLAN base station radio-frequency implementation methods based on more sectors | |
| CN101719782A (en) | td-scdma wireless repeater | |
| CN203352581U (en) | Wireless detecting safety system | |
| CN203136176U (en) | Mobile phone monitor based on cellular communication protocol | |
| CN202535360U (en) | Novel TD-LTE indoor distribution MIMO frequency conversion system | |
| CN103401578A (en) | Wireless sensing safety system and sensing method thereof | |
| CN203942528U (en) | A kind of wireless coverage strengthens equipment | |
| CN203243526U (en) | Indoor coverage accessing device and indoor coverage system | |
| CN109839970A (en) | A kind of raising temperature controller product Wi-Fi networking stability generation method | |
| CN202587394U (en) | Novel TD-LTE indoor distribution system | |
| CN103118408B (en) | Method, the Apparatus and system of cell measuring method, cell measurement and switching | |
| CN202523850U (en) | Antenna system | |
| CN201134804Y (en) | Base station signal amplifying system | |
| CN106506790B (en) | Signal processing circuit, method and user equipment | |
| CN102970742A (en) | Frequency control method and device for wireless communication system | |
| CN110839278B (en) | Indoor base station and positioning method | |
| CN201733303U (en) | SCDMA outdoor radio frequency amplification device | |
| CN102593612B (en) | Antenna system | |
| CN205356698U (en) | CDMA and WCDMA mobile communication terminal intelligence management and control system | |
| CN209134423U (en) | A kind of LTE-R cognition cloud base station in high-speed rail |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20150725 |
|
| EXPY | Termination of patent right or utility model |