CN201425776Y - Transmission platform of compositive information system - Google Patents
Transmission platform of compositive information system Download PDFInfo
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- CN201425776Y CN201425776Y CN2009200816669U CN200920081666U CN201425776Y CN 201425776 Y CN201425776 Y CN 201425776Y CN 2009200816669 U CN2009200816669 U CN 2009200816669U CN 200920081666 U CN200920081666 U CN 200920081666U CN 201425776 Y CN201425776 Y CN 201425776Y
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Abstract
The utility model discloses a transmission platform of a compositive information system, which comprises a lower-layer radio RF transmitting-receiving subsystem, and a plurality of data acquisition base stations and a monitoring center, wherein the data acquisition base stations are mainly composed of base-station RF transmitting-receiving modules for transmitting and receiving RF signals, MCU processing modules for analyzing and processing data and digital modulation demodulation modules for modulating digital signals; the lower-layer radio RF transmitting-receiving subsystem is composed ofsensors and lower-layer RF transmitting-receiving modules which are corresponding one to one. The utility model uses a radio RF network and modulation demodulation technology as the transmission platform, which has the advantages of high efficiency, large data amount, good compatibility and connection with other systems, high system stability, and the like.
Description
Technical field
The utility model relates to field of data transmission, particularly a kind of integrated information system transmission platform.
Background technology
In special industries such as railway, colliery, danger enterprise; the incidence of accident is high, has brought enormous economic loss and casualties to country, traces it to its cause; be not to lack relevant safety monitoring equipment, but the watch-dog of each manufacturer production is done things in his own way.
As shown in Figure 1, in high risk operations such as existing colliery, dangerization enterprise, tunnel, traditional communication data is transmitted in the system architecture aspect, existing supervisory system generally all is that the bottom data collection network adopts passive type RFID network, data transmission adopts fieldbus mode (RS485 etc.), this mode inefficiency, data volume are little, the ability of plugging into, system are unreliable, can not separate (node failure can influence the several node work that close on) between poor stability, node and the node; Aspect transmission cable, stability for system, so generally all be the corresponding transmission lines cable of an equipment, promptly there are what equipment just to need how many root transmission cables, in these particular environment, the laying cost of wire rod is far longer than equipment itself, so the cost of system generally all is unattainable; Also having aspect sweep time, often all is the timing acquiring data, because Surveillance center can not control sensor network, so the transmission of data often all is unidirectional, in case after equipment was installed and debug well, its data volume, transmission mode were just fixing, can not change; Also have in the high risk operation, rely on the system architecture of system, in case disaster takes place, system just paralyses, can't operate as normal, cause the low of a large amount of casualties and rescue efficiency; The ability that now present system often plugs into mutually is very low, can not accomplish unified basically and concord mutually, under existing fieldbus transmission mode, articulates the stability that a miscellaneous equipment tends to the system that influences.
In these special industries, the laying cost of cable is far longer than the cost of equipment itself, so existing communication system considers it is unpractiaca on cost.The monitoring product of each manufacturer production is independent separately, lacks the mutual communication ability.
Based on this, if can design a cover system scheme, make that issuing of the data passback of all watch-dogs and control command can both shared single line cable, so just can reduce the laying cost of opertaing device greatly, also provide great convenience the management of equipment.
The utility model content
The utility model provides the integrated information system transmission platform for solving the problems of the technologies described above, design by redundant network, adopt modulation-demodulation technique to realize data transmission, be specially adapted to complexity, the multifarious applied environment of Monitoring Data (as high risk industries such as colliery, railway, tunnels).
The integrated information system transmission platform, it is characterized in that: comprise bottom radio transceiver subsystem, N data collection base station and Surveillance center, described data acquisition base station mainly is made of base station radio-frequency transceiver module, MCU processing module, digital modulation and demodulation module, described radio transceiver subsystem is by sensor and the corresponding one by one composition of bottom radio-frequency (RF) receiving and transmission module, and the bottom radio-frequency (RF) receiving and transmission module is by Single-chip Controlling.
The job step of described integrated information system transmission platform is:
Single-chip microcomputer is according to the agreement reading of data of sensor, then with data transmission to the bottom radio-frequency (RF) receiving and transmission module, the bottom radio-frequency (RF) receiving and transmission module becomes the serial bit stream data-modulated of receiving the radiofrequency signal of certain frequency (frequency can by programmed control); Described base station radio-frequency transceiver module receives the radiofrequency signal that is produced by the bottom radio frequency transceiving module and is reduced into numerical information, the MCU processing module is done to judge, is packed and handle data after reading numerical information, packet after will packing at last is sent to the digital modulation and demodulation module, packet is modulated into digital modulation signals to be passed to Surveillance center (frequency can be by programmed control, and the frequency of each base station is different); Surveillance center carries out demodulation and reduction to each digital modulation signals of transmitting of group base station, at last to the data of reduction judge, storage, display process;
When Surveillance center's control monitored object, only need down send a string control command, Surveillance center is modulated into digital modulation signals with control command and passes to the digital collection base station, when the frequency, demodulation frequency of the frequency of digital modulation signals and digital collection base station is consistent, base station, digital collection base station receives digital modulation signals and is reduced into digital signal, the digital signal that the MCU processing module is all reduced is carried out data and is judged, packing, data packet transmission to base station radio-frequency transceiver module with packing converts the radio frequency signal transmission to then, the bottom radio-frequency (RF) receiving and transmission module receives after the radio frequency signal that transmits the data acquisition base station, by single-chip microcomputer control command is forwarded to sensor, thereby realizes control monitored object.
Described sensor adopts USART interface (Universal Synchronous Asynchronous ReceiverTransmitter, universal synchronous asynchronous transmission receiver) to link to each other with the MCU processing module.
Connected mode between described single-chip microcomputer and the base station radio-frequency transceiver module adopts SPI, and the sequential of SPI is carried out software simulation by the IO mouth of single-chip microcomputer.
When sensor one-way transmission data, i.e. sensor timed sending data, sensor enters dormant state after sending; When sensor was uploaded data, Surveillance center carried out FEEDBACK CONTROL according to the data that receive to sensor device.
Data acquisition base station received RF signal, and become carrier signal toward Surveillance center transmission the data-modulated that receives, and at the data management machine room of Surveillance center signal is carried out demodulation, recover raw data, and be stored in the database server, call for Surveillance center.
On the other hand, the data acquisition base station receives order that Surveillance center sends and order is sent to the sensor of appointment, and the base station radio-frequency transceiver module adopts the external interrupt mode.
The data acquisition network of described platform adopts wireless mode, and data transmission adopts wired mode.In the middle of the high risk field that accident rates such as colliery, tunnel take place frequently, collapse easily or unexpected sexual behavior part causes the backbone fault, thus the problem that causes total system to be paralysed.For fear of situation about causing therefrom, thus lay the redundant network system, from other escape way (as the return airway in colliery) wiring, when so just can guarantee to take place any accident, the security of network data.
If carry out exchanges data between Surveillance center and the data acquisition base station, must pass through Handshake Protocol, after in case all get nowhere through shaking hands repeatedly, the backbone interruption of breaking down is thought by Surveillance center so, send one immediately and order to the redundant network system, closing relay forms the another one path, at this moment, whole network is divided into two networks formations.As shown in figure 12, suppose that Surveillance center sends Handshake Protocol to the base station 3, but owing between the base station 2 and 3 line interruption takes place, the Handshake Protocol that sends to base station 3 so just can not be successful, at this moment, Surveillance center thinks that base station 3 disconnects, and then carries out the network reorganization at once, at first start the redundant network system, carry out Handshake Protocol and data interaction with base station 3 or base station afterwards once more by redundant system then.
During the system operate as normal, redundant network is not born any task, and relay is in off-state, the assurance waveform can not crosstalked, when breaking down, in case the transmission cable of backbone is damaged, Surveillance center starts redundant network by send an order to redundant network so.
The beneficial effects of the utility model are as follows:
The utility model adopts radio frequency network and modulation-demodulation technique as transmission platform, and the efficient height of this platform tool, data volume be big, can have well compatible plugging into property, high system stability advantages with other system;
Adopt the modulation transmission mode and since carrier signal can with line of power sharing, so adopt this mode, all supervisory systems can be articulated on the line, greatly reduce the cost of system; Because modulation itself has high bandwidth, so vision signal, voice signal, sensing data and some other switching value data can be jointly, simultaneously, the conllinear transmission, the difference between the data is mainly distinguished by the packing manner of data and the frequency of modulation;
In the native system platform, because Surveillance center's controlling bus can carry out real-time FEEDBACK CONTROL to sensor network, so the data transmission period of its terminal device, pattern etc. are carried out real time altering;
Owing to added the redundant network system, its transmission cable transfers to the data management machine room by other approach, so after disaster takes place, if cause the backbone fracture, so standby redundant network system starts automatically, and data in real time is effectively transferred to Surveillance center; Can also lay many times redundant system according to the needs of actual conditions;
This platform articulates a new device just will add a radio-frequency (RF) receiving and transmission module on the basis of terminal device, just this terminal device can be incorporated in the system, so this system has the ability of plugging into efficiently;
System architecture adopts the single line cable, thus cost and construction reduction greatly, and also the hardware design of each system base-station is identical, and construction can be carried out functional configuration to each base station by Surveillance center after finishing, and makes it to finish different functions;
Native system designs at complicated, the multifarious applied environment of Monitoring Data; in conjunction with different end sensors and watch-dog; can be used in industries such as colliery, railway, danger enterprise, also can be applied to large warehoused cargo and transfer guard system and army's logistics support system and ships used for military purposes to decrease the pipe backup system.
Description of drawings
Fig. 1 is a communication block diagram traditional in the background technology
Fig. 2 is a system architecture synoptic diagram of the present utility model
Fig. 3 is a radio-frequency (RF) receiving and transmission module block diagram of the present utility model
Fig. 4 is an architecture of base station synoptic diagram of the present utility model
Fig. 5 is the process flow diagram of radio-frequency module of the present utility model
Fig. 6 is the process flow diagram of radio-frequency module of the present utility model
Fig. 7 is a base station of the present utility model block diagram
Fig. 8 is a base station of the present utility model FB(flow block)
Fig. 9 is a redundant network system chart of the present utility model
Figure 10 is a network recombination structure synoptic diagram of the present utility model
Figure 11 is a redundant network hardware connection layout of the present utility model
Figure 12 is a redundant network program flow diagram of the present utility model
Figure 13 is the circuit diagram of the CC1100 of the utility model employing
Be labeled as among the figure: 1, data acquisition base station, 2, Surveillance center, 3, the base station radio-frequency transceiver module, 4, the MCU processing module, 5, the digital modulation and demodulation module, 6, sensor.
Embodiment
Shown in Fig. 2-13, the integrated information system transmission platform, comprise bottom radio transceiver subsystem, N data collection base station and Surveillance center, described data acquisition base station mainly is made of base station radio-frequency transceiver module, MCU processing module, digital modulation and demodulation module, described radio transceiver subsystem is by sensor and the corresponding one by one composition of bottom radio-frequency (RF) receiving and transmission module, and the bottom radio-frequency (RF) receiving and transmission module is by Single-chip Controlling.
The job step of described integrated information system transmission platform is:
Single-chip microcomputer is according to the agreement reading of data of sensor, then with data transmission to the bottom radio-frequency (RF) receiving and transmission module, the bottom radio-frequency (RF) receiving and transmission module becomes the serial bit stream data-modulated of receiving the radiofrequency signal of certain frequency (frequency can by programmed control); Described base station radio-frequency transceiver module receives the radiofrequency signal that is produced by the bottom radio frequency transceiving module and is reduced into numerical information, the MCU processing module is done to judge, is packed and handle data after reading numerical information, packet after will packing at last is sent to the digital modulation and demodulation module, packet is modulated into digital modulation signals to be passed to Surveillance center (frequency can be by programmed control, and the frequency of each base station is different); Surveillance center carries out demodulation and reduction to each digital modulation signals of transmitting of group base station, at last to the data of reduction judge, storage, display process;
When Surveillance center's control monitored object, (communications protocol is by the definition of controlling oneself only need down to send a string control command, be defined as start bit (0xAA) as communications protocol, command bit, device number, the data number, data bit, check bit stop bit (0xFF) constitutes, then can transmitting control commands be 0XAA 0X01 0X05 0X000X00 0XFF), Surveillance center is modulated into digital modulation signals with control command and passes to the digital collection base station, when the frequency, demodulation frequency of the frequency of digital modulation signals and digital collection base station is consistent, base station, digital collection base station receives digital modulation signals and is reduced into digital signal, the digital signal that the MCU processing module is all reduced is carried out data and is judged, packing, data packet transmission to base station radio-frequency transceiver module with packing converts the radio frequency signal transmission to then, the bottom radio-frequency (RF) receiving and transmission module receives after the radio frequency signal that transmits the data acquisition base station, by single-chip microcomputer control command is forwarded to sensor, thereby realizes control monitored object.
Described sensor adopts USART interface (Universal Synchronous Asynchronous ReceiverTransmitter, universal synchronous asynchronous transmission receiver) links to each other with the MCU processing module, the MCU processing module adopts the STC12LE5406 in 51 series monolithics, the CC1100 that the base station radio-frequency transceiver module adopts TI company to release.
Connected mode between described single-chip microcomputer CC1100 and the STC12LE5406 adopts SPI (SerialPeripheral Interface, serial peripheral equipment interface bus).The sequential of SPI can be carried out software simulation by the IO mouth of single-chip microcomputer STC12LE5406.
When sensor one-way transmission data, i.e. sensor timed sending data, sensor enters dormant state after sending, and flow chart is seen shown in Figure 5; When sensor was uploaded data, Surveillance center carried out FEEDBACK CONTROL according to the data that receive to sensor device, as shown in Figure 6.
According to the characteristics of chip CC1100, it is inner by its final data modulation form of program register may command FSK modulation, MSK modulation, GFSK etc., and the frequency of operation of CC1100 can dispose by related register; Adopt the CC1100 chip, increased the configurable flexible performance of system, the hardware circuit design of data acquisition base station as shown in figure 13.
Data acquisition base station received RF signal, and become carrier signal toward Surveillance center transmission the data-modulated that receives, data management machine room in Surveillance center carries out demodulation to signal, recover raw data, and be stored in the database server, call for Surveillance center, the data acquisition base station as shown in Figure 7.
On the other hand, order that data acquisition base station reception Surveillance center sends and the sensor that order is sent to appointment, the base station radio-frequency transceiver module adopts the external interrupt mode, CC1100 for example, with the IOCFG0 register configuration of CC1100 is the 0x06 mode, be the packet method of synchronization, data acquisition base station flow process as shown in Figure 8.
The data of described bottom radio transceiver subsystem pick-up transducers also send to the data acquisition base station by RF-wise, employing be wireless mode, data transmission adopts wired mode.In the middle of the high risk field that accident rates such as colliery, tunnel take place frequently, collapse easily or unexpected sexual behavior part causes the backbone fault, thus the problem that causes total system to be paralysed.For fear of situation about causing therefrom, so lay the redundant network system, from other escape way (as the return airway in colliery) wiring, when so just can guarantee to take place any accident, the security of network data, the structured flowchart of redundant network as shown in figure 10.
If carry out exchanges data between Surveillance center and the data acquisition base station, must pass through Handshake Protocol, after in case all get nowhere through shaking hands repeatedly, the backbone interruption of breaking down is thought by Surveillance center so, send one immediately and order to the redundant network system, closing relay forms the another one path, at this moment, whole network is divided into two networks formations.Suppose that Surveillance center sends Handshake Protocol to the base station 3, but owing between the base station 2 and 3 line interruption takes place, the Handshake Protocol that sends to base station 3 so just can not be successful, at this moment, Surveillance center thinks that base station 3 disconnects, and then carries out the network reorganization at once, at first starts the redundant network system, carry out Handshake Protocol and data interaction with base station 3 or base station afterwards once more by redundant system then, as shown in figure 12.
During the system operate as normal, redundant network is not born any task, and relay is in off-state, the assurance waveform can not crosstalked, when breaking down, in case the transmission cable of backbone is damaged, Surveillance center starts redundant network by send an order to redundant network so.The CC1100 modulation receives modulation signal and the parsing that Surveillance center sends, Single Chip Microcomputer (SCM) system reads data and the corresponding order of the basis pilot relay closure of CC1100, in case closed, system makes up again so when relay, and the hardware configuration of redundant network as shown in figure 11.
Claims (5)
1, integrated information system transmission platform, it is characterized in that: comprise bottom radio transceiver subsystem, N data collection base station (1) and Surveillance center (2), described data acquisition base station (1) main by the base station radio-frequency transceiver module (3) that is used to receive and dispatch radiofrequency signal, be used to analyze and the MCU processing module (4) of deal with data, the digital modulation and demodulation module (5) that is used for modulated digital signal constitute, described radio transceiver subsystem is formed by sensor (6) with by monolithic processor controlled bottom radio-frequency (RF) receiving and transmission module is corresponding one by one.
2, integrated information system transmission platform according to claim 1 is characterized in that: described sensor adopts the USART interface to link to each other with MCU processing module (4).
3, integrated information system transmission platform according to claim 1 is characterized in that: adopt the SPI mode to connect between described single-chip microcomputer and the base station radio-frequency transceiver module.
4, integrated information system transmission platform according to claim 1 is characterized in that: the described bottom radio transceiver subsystem that is used for the pick-up transducers data is connected with data acquisition base station (1) by RF-wise.
5, integrated information system transmission platform according to claim 1 and 2 is characterized in that: described MCU processing module (4) adopts the STC12LE5406 in 51 series monolithics, and base station radio-frequency transceiver module (3) adopts the CC1100 chip.
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| CN2009200816669U CN201425776Y (en) | 2009-06-11 | 2009-06-11 | Transmission platform of compositive information system |
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| CN2009200816669U CN201425776Y (en) | 2009-06-11 | 2009-06-11 | Transmission platform of compositive information system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102693620A (en) * | 2012-06-12 | 2012-09-26 | 上海市电力公司 | Wireless meter reading system |
| CN102749910A (en) * | 2012-06-20 | 2012-10-24 | 青岛孚迪尔电气自动化有限公司 | System for identifying and early warning abnormal running status of coal mine electromechanical equipment group |
| CN102929223A (en) * | 2012-10-08 | 2013-02-13 | 哈尔滨工程大学 | Ship damage management system |
| CN116887317A (en) * | 2023-09-06 | 2023-10-13 | 四川三思德科技有限公司 | Special communication base station data transmission system under network breaking working condition |
-
2009
- 2009-06-11 CN CN2009200816669U patent/CN201425776Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102693620A (en) * | 2012-06-12 | 2012-09-26 | 上海市电力公司 | Wireless meter reading system |
| CN102749910A (en) * | 2012-06-20 | 2012-10-24 | 青岛孚迪尔电气自动化有限公司 | System for identifying and early warning abnormal running status of coal mine electromechanical equipment group |
| CN102749910B (en) * | 2012-06-20 | 2016-08-10 | 青岛孚迪尔电气自动化有限公司 | System for identifying and early warning abnormal running status of coal mine electromechanical equipment group |
| CN102929223A (en) * | 2012-10-08 | 2013-02-13 | 哈尔滨工程大学 | Ship damage management system |
| CN116887317A (en) * | 2023-09-06 | 2023-10-13 | 四川三思德科技有限公司 | Special communication base station data transmission system under network breaking working condition |
| CN116887317B (en) * | 2023-09-06 | 2023-11-28 | 四川三思德科技有限公司 | Special communication base station data transmission system under network breaking working condition |
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Granted publication date: 20100317 Termination date: 20120611 |