CN201637523U - Wireless pressure measuring system - Google Patents
Wireless pressure measuring system Download PDFInfo
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- CN201637523U CN201637523U CN2010201551780U CN201020155178U CN201637523U CN 201637523 U CN201637523 U CN 201637523U CN 2010201551780 U CN2010201551780 U CN 2010201551780U CN 201020155178 U CN201020155178 U CN 201020155178U CN 201637523 U CN201637523 U CN 201637523U
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Abstract
The utility model discloses a wireless pressure measuring system which comprises a plurality of sensor nodes, a center coordinator which conducts comprehensive management on the plurality of sensor nodes and uploads the data monitored by the plurality of sensor nodes to a control terminal, and a wireless sensor network which is formed by the plurality of sensor nodes and the center coordinator together and used for monitoring the pressure of a plurality of monitoring parts in real time, wherein the wireless sensor node comprises a pressure sensor, a data processing module, a wireless communication module I and a power management module; the center coordinator comprises a network management server and a wireless communication module II which communicates with the wireless communication module bi-directionally; and the wireless pressure measuring system also comprises routing nodes used for forwarding the transmission data between the wireless sensor nodes and the center coordinator. The wireless pressure measuring system has small volume, convenient installation, simple use, high precision, good using effect and wireless communication function, and can effectively avoid route blockage and data loss caused by simultaneous sending of data.
Description
Technical field
The utility model belongs to the pressure measurement technology field, especially relates to a kind of wireless pressure measuring system.
Background technology
At present, the wireless pressure measurement products that occurs on the market mainly is single wireless pressure sensor or transmitter, and its major function is merely outwards to send data by pressure transducer, the not relevant Network Management Function that needs.Thereby in the actual use, each receives the wireless sensor node limited amount that control end can insert, and concurrent transmission very easily takes place, thereby causes channel to stop up or loss of data, thereby has limited the range of application of wireless pressure measurement products greatly.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of wireless pressure measuring system is provided, its volume is little, easy for installation, use is simple and precision is high, result of use is good, have radio communication function, can effectively avoid owing to send channel block and the loss of data phenomenon that data produce simultaneously.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of wireless pressure measuring system, it is characterized in that: comprise being laid in a plurality of wireless sensor nodes on a plurality of monitorings position in the area to be monitored respectively and a plurality of wireless sensor nodes being carried out integrated management and with the central coordinator of a plurality of wireless sensor node institute Monitoring Data data upload to control terminal, all carry out two-way communication by communication between a plurality of wireless sensor nodes and central coordinator and form a wireless sensor network of simultaneously a plurality of described monitorings position pressure being monitored in real time jointly; Described wireless sensor node comprises pressure transducer, the data processing module that joins with pressure transducer, the power management module that joins and be used for the wireless communication module one of data transmit-receive and be respectively pressure transducer, data processing module and wireless communication module one power supply with data processing module, and described power management module joins with pressure transducer, data processing module and wireless communication module one respectively; Described central coordinator comprises network management server and carries out two-way communication with wireless communication module one and be used for the wireless communication module two of data transmit-receive that described wireless communication module two joins with network management server.
Also comprise transmitting the routing node that data are transmitted between a plurality of described wireless sensor nodes and central coordinator, described routing node is the wireless communication module three with routing function, described wireless communication module three respectively and wireless communication module one and two of wireless communication modules carry out two-way communication.
Described wireless communication module one, wireless communication module two and described wireless communication module three are the Zigbee wireless communication module.
Described data processing module comprise join with pressure transducer and to pressure transducer institute detection signal carry out the signal condition module of processing and amplifying, the A/D modular converter that joins with the signal condition module, the control module of joining with the A/D modular converter and the data memory module and the display module that join with control module respectively.
Described control module is a single-chip microcomputer, and described single-chip microcomputer is chip MSP430.
Be connected by serial ports RS232 or RS485 between described central coordinator and control terminal.
The utility model compared with prior art has the following advantages:
1, simple in structure, volume is little and reasonable in design, installs to lay conveniently, cost of manufacture is low, uses easy and simple to handle.
2, networking function flexibly can be formed Star network, Tree Network and mesh network according to the difference of actual environment, by the distribution routing node coverage of extended wireless network greatly.Simultaneously, system adopts the free ISM band Zigbee wireless networking mode of 2.4GHz, need not the supplementary payments communication expense during use.
3, low-power consumption, electric current＜55mA during reception, transmitter current is less than or equal to 70mA.System adopts intermittently receives and dispatches mode of operation, and the overwhelming majority time is in park mode, and the working time of battery is (per 5 minutes renewal one secondary data) more than half a year.
4, high stability has adopted CSMA/CA anti-collision mechanism and TDMA algorithm, greatly reduces the probability of happening of concurrent transmission, has avoided the obstruction of channel and losing of data.
5, super communication distance far away has adopted the wireless transport module that has power amplification, and ideally visual transmission range can reach 1km farthest, and the stable transfer distance is more than 400 meters.
6, pressure detection partly is that the precision of pressure unit can reach more than 0.5%, has-temperature compensation of 10C-60C, and supports the diffuse si and the ceramic pressure sensing core body of all ranges of 0-60MPa.
7, applied widely, can substitute traditional wired pressure monitor network, be applied to the pressure survey of pipeline transmission such as colliery, oil field, heating system.Main application fields is the occasion at open-air or the inconvenience of supporting power supply environment, as oil transportation, and defeated vapour, pressure monitoring is carried out in places such as conveying energy conduit such as heating, realizes the signal wireless teletransmission.Cooperate the wireless telecommunications receiver module to use, host computer can directly use configuration to monitor image data in real time.
8, reasonable in design, on the basis of original wireless pressure sensor and telegon, added Network Management Function, sequence algorithm when adopting TDMA is set a time tag for each wireless sensor node, and each data transfer cycle is divided into several slots, each wireless sensor node sends data in fixing time slot, thereby avoided the generation of concurrent transmission, increased the load capacity of central coordinator greatly, improved the stability of total system.
In sum, the utility model volume is little, easy for installation, use is simple and precision is high, result of use is good, be embedded with the Zigbee wireless communication module and adopted the CSMA/CA anti-collision mechanism, effectively avoided owing to send channel block and the loss of data phenomenon that data produce simultaneously.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a fundamental diagram of the present utility model.
Fig. 2 is the circuit block diagram of the utility model wireless sensor node.
Fig. 3 is the fundamental diagram of the utility model central coordinator.
Description of reference numerals:
The 1-wireless sensor node; The 1-1-pressure transducer; The 1-2-data processing module;
1-21-signal condition module; The 1-22-A/D modular converter; The 1-23-control module;
The 1-24-data memory module; The 1-25-display module; 1-3-wireless communication module one;
The 1-4-power management module; The 2-central coordinator; The 2-1-network management server;
2-2-wireless communication module two; The 3-control terminal; The 4-routing node.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model comprises and is laid in the area to be monitored a plurality of wireless sensor nodes 1 on a plurality of monitorings position respectively and a plurality of wireless sensor nodes 1 are carried out integrated management and with the central coordinator 2 of 1 Monitoring Data data upload of a plurality of wireless sensor nodes to control terminal 3,2 of a plurality of wireless sensor nodes 1 and central coordinator are all carried out two-way communication by communication and formed a wireless sensor network of simultaneously a plurality of described monitorings position pressure being monitored in real time jointly.The data processing module 1-2 that described wireless sensor node 1 comprises pressure transducer 1-1, join with pressure transducer 1-1, join with data processing module 1-2 and be used for wireless communication module one 1-3 of data transmit-receive and be respectively pressure transducer 1-1, data processing module 1-2 and the power management module 1-4 of wireless communication module one 1-3 power supply, described power management module 1-4 joins with pressure transducer 1-1, data processing module 1-2 and wireless communication module one 1-3 respectively.Described central coordinator 2 comprises network management server 2-1 and carries out two-way communication with wireless communication module one 1-3 and be used for wireless communication module two 2-2 of data transmit-receive that described wireless communication module two 2-2 and network management server 2-1 join.Described network management server 2-1 and control terminal 3 join.
Simultaneously, the utility model also comprise to 2 of a plurality of described wireless sensor nodes 1 and central coordinator transmit the routing node 4 that data are transmitted, described routing node 4 is for having the wireless communication module three of routing function, and described wireless communication module three carries out two-way communication respectively and between wireless communication module one 1-3 and wireless communication module two 2-2.The quantity of described routing node 4 is a plurality of.
In the present embodiment, described wireless communication module one 1-3, wireless communication module two 2-2 and described wireless communication module three are the Zigbee wireless communication module, are specially the 2.4GHz radio-frequency (RF) transceiver based on the Zigbee wireless communication protocol.
Described data processing module 1-2 comprise join with pressure transducer 1-1 and to pressure transducer 1-1 institute detection signal carry out the signal condition module 1-21 of processing and amplifying, the A/D modular converter 1-22 that joins with signal condition module 1-21, the control module 1-23 that joins with A/D modular converter 1-22 and the data memory module 1-24 and the display module 1-25 that join with control module 1-23 respectively.Described control module 1-23 is a single-chip microcomputer, and described single-chip microcomputer is chip MSP430.3 of described central coordinator 2 and control terminals are connected by serial ports RS232 or RS485.
In the actual use, the pressure transducer 1-1 in the wireless sensor node 1 supports all ranges of 0-60MPa on hardware, and adopts pottery and diffuse si material; Data processing module 1-2 adopts the MSP430 single-chip microcomputer of low-power consumption, provide driving voltage and its sheet to carry the output signal of 16 A/D modular converter 1-22 timing acquiring pressure transducer 1-1 by single-chip microcomputer to pressure transducer 1-1, and by obtaining pressure data after filtering, linear compensation and the temperature compensation, and pressure data is presented on the LCD display of display module 1-25 the most at last, and the single-chip microcomputer sheet carries the asynchronous communication module pressure data is transferred to wireless communication module one 1-3 simultaneously; Wireless communication module one 1-3 is in the low-power consumption park mode when flat, when data need be transmitted, wake up automatically, then the pressure data of receiving is sent to central coordinator 2.
When the distance between wireless sensor node 1 and the central coordinator 2 exceeds the coverage of wireless signal, then need to carry out data forwarding by routing node 4.When setting up the Zigbee network, routing node 4 must be able to detect all wireless sensor nodes that oneself can contact 1 and judge the own corresponding relay degree of depth, finally sets up all wireless sensor nodes 1 that self-detection arrives communication path to central coordinator 2.The principle of work of routing node 4 is: if one of them routing node 4 finds around oneself central coordinator 2 is arranged, then the relaying degree of depth of this routing node 4 is 1; If one of them routing node 4 does not find around oneself central coordinator 2 is arranged, then begin to search for other routing node 4 of the relaying degree of depth minimum (being made as n) that oneself can contact, then the relaying degree of depth of this routing node 4 is n+1.In a word, when setting up wireless sensor network, wireless sensor node 1 all routing nodes that can contact 4 of search and central coordinator 2, if there is not central coordinator 2, just look for the minimum routing node of the relaying degree of depth 4, forming one is the routing node 4 of n to the relaying degree of depth by wireless sensor node 1, be that the routing node 4 of n is the routing node 4 of n-1 to the relaying degree of depth by the relaying degree of depth again, be that the routing node 4 of n-1 is the routing node 4 of n-2 to the relaying degree of depth by the relaying degree of depth again, ..., be 2 routing node 4 by the relaying degree of depth to the relaying degree of depth being 1 routing node 4, is 1 routing node 4 communication path to central coordinator 2 by the relaying degree of depth again.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (6)
1. wireless pressure measuring system, it is characterized in that: comprise being laid in the area to be monitored a plurality of wireless sensor nodes (1) on a plurality of monitorings position respectively and a plurality of wireless sensor nodes (1) being carried out integrated management and with the central coordinator (2) of a plurality of wireless sensor nodes (1) institute Monitoring Data data upload to control terminal (3), all carry out two-way communication by communication between a plurality of wireless sensor nodes (1) and central coordinator (2) and form a wireless sensor network of simultaneously a plurality of described monitorings position pressure being monitored in real time jointly; The data processing module (1-2) that described wireless sensor node (1) comprises pressure transducer (1-1), join with pressure transducer (1-1), join with data processing module (1-2) and be used for the wireless communication module one (1-3) of data transmit-receive and be respectively the power management module (1-4) that pressure transducer (1-1), data processing module (1-2) and wireless communication module one (1-3) are powered, described power management module (1-4) joins with pressure transducer (1-1), data processing module (1-2) and wireless communication module one (1-3) respectively; Described central coordinator (2) comprises network management server (2-1) and carries out two-way communication with wireless communication module one (1-3) and be used for the wireless communication module two (2-2) of data transmit-receive that described wireless communication module two (2-2) joins with network management server (2-1).
2. according to the described wireless pressure measuring system of claim 1, it is characterized in that: also comprise transmitting the routing node (4) that data are transmitted between a plurality of described wireless sensor nodes (1) and central coordinator (2), described routing node (4) is for having the wireless communication module three of routing function, and described wireless communication module three carries out two-way communication respectively and between wireless communication module one (1-3) and wireless communication module two (2-2).
3. according to the described wireless pressure measuring system of claim 2, it is characterized in that: described wireless communication module one (1-3), wireless communication module two (2-2) and described wireless communication module three are the Zigbee wireless communication module.
4. according to claim 1,2 or 3 described wireless pressure measuring systems, it is characterized in that: described data processing module (1-2) comprise join with pressure transducer (1-1) and to pressure transducer (1-1) institute detection signal carry out the signal condition module (1-21) of processing and amplifying, the A/D modular converter (1-22) that joins with signal condition module (1-21), the control module (1-23) of joining with A/D modular converter (1-22) and the data memory module (1-24) and the display module (1-25) that join with control module (1-23) respectively.
5. according to the described wireless pressure measuring system of claim 4, it is characterized in that: described control module (1-23) is single-chip microcomputer, and described single-chip microcomputer is chip MSP430.
6. according to claim 1,2 or 3 described wireless pressure measuring systems, it is characterized in that: be connected by serial ports RS232 or RS485 between described central coordinator (2) and control terminal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201551780U CN201637523U (en) | 2010-04-09 | 2010-04-09 | Wireless pressure measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201551780U CN201637523U (en) | 2010-04-09 | 2010-04-09 | Wireless pressure measuring system |
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| CN201637523U true CN201637523U (en) | 2010-11-17 |
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| CN2010201551780U Expired - Lifetime CN201637523U (en) | 2010-04-09 | 2010-04-09 | Wireless pressure measuring system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589763A (en) * | 2012-01-30 | 2012-07-18 | 山东科技大学 | Performance online monitoring system for filler |
| CN102614568A (en) * | 2012-03-28 | 2012-08-01 | 单荣芳 | Pressure wWireless dynamic pressure monitoring device for artificial trachea cuff |
| CN102760352A (en) * | 2012-07-06 | 2012-10-31 | 物联微电子(常熟)有限公司 | Single-rate meter time-sharing charging system and method |
| CN103363297A (en) * | 2013-06-25 | 2013-10-23 | 西安理工大学 | Oilfield water injection pipe network failure detection method based on wireless sensing technology |
| CN103759878A (en) * | 2013-12-21 | 2014-04-30 | 河南理工大学 | Intelligent precise mining barometer |
| CN103957259A (en) * | 2013-07-23 | 2014-07-30 | 无锡赛思汇智科技有限公司 | Pipeline pressure monitoring system and method |
| CN104568233A (en) * | 2015-02-10 | 2015-04-29 | 四川芯海联云科技有限公司 | Pressure instrument data recording and inquiring system based on RFID Internet of Things technology |
| CN105043647A (en) * | 2015-04-23 | 2015-11-11 | 成都柏森松传感技术有限公司 | Fluid pressure monitoring system within closed container |
| CN105588683A (en) * | 2014-11-03 | 2016-05-18 | 中国航空工业集团公司西安飞机设计研究所 | Design method for pressure increasing and decreasing speed measurement apparatus |
| CN106225989A (en) * | 2016-08-17 | 2016-12-14 | 成都润泰智通科技有限公司 | Improved digital formula wireless pressure TT&C system |
| CN108800455A (en) * | 2018-04-13 | 2018-11-13 | 珠海格力电器股份有限公司 | Air conditioning unit, control method of air conditioning unit and central coordinator |
| CN114791349A (en) * | 2022-06-20 | 2022-07-26 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel pressure measuring system based on digital pressure measuring module |
-
2010
- 2010-04-09 CN CN2010201551780U patent/CN201637523U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589763B (en) * | 2012-01-30 | 2013-08-21 | 山东科技大学 | Performance online monitoring system for filler |
| CN102589763A (en) * | 2012-01-30 | 2012-07-18 | 山东科技大学 | Performance online monitoring system for filler |
| CN102614568A (en) * | 2012-03-28 | 2012-08-01 | 单荣芳 | Pressure wWireless dynamic pressure monitoring device for artificial trachea cuff |
| CN102760352B (en) * | 2012-07-06 | 2015-07-01 | 物联微电子(常熟)有限公司 | Single-rate meter time-sharing charging system and method |
| CN102760352A (en) * | 2012-07-06 | 2012-10-31 | 物联微电子(常熟)有限公司 | Single-rate meter time-sharing charging system and method |
| CN103363297A (en) * | 2013-06-25 | 2013-10-23 | 西安理工大学 | Oilfield water injection pipe network failure detection method based on wireless sensing technology |
| CN103363297B (en) * | 2013-06-25 | 2015-09-30 | 西安理工大学 | Based on the oilfield flooding pipeline network fault detection method of wireless sensor technology |
| CN103957259A (en) * | 2013-07-23 | 2014-07-30 | 无锡赛思汇智科技有限公司 | Pipeline pressure monitoring system and method |
| CN103759878A (en) * | 2013-12-21 | 2014-04-30 | 河南理工大学 | Intelligent precise mining barometer |
| CN103759878B (en) * | 2013-12-21 | 2016-03-09 | 河南理工大学 | The accurate barometer of mining intelligent |
| CN105588683A (en) * | 2014-11-03 | 2016-05-18 | 中国航空工业集团公司西安飞机设计研究所 | Design method for pressure increasing and decreasing speed measurement apparatus |
| CN104568233A (en) * | 2015-02-10 | 2015-04-29 | 四川芯海联云科技有限公司 | Pressure instrument data recording and inquiring system based on RFID Internet of Things technology |
| CN105043647A (en) * | 2015-04-23 | 2015-11-11 | 成都柏森松传感技术有限公司 | Fluid pressure monitoring system within closed container |
| CN106225989A (en) * | 2016-08-17 | 2016-12-14 | 成都润泰智通科技有限公司 | Improved digital formula wireless pressure TT&C system |
| CN108800455A (en) * | 2018-04-13 | 2018-11-13 | 珠海格力电器股份有限公司 | Air conditioning unit, control method of air conditioning unit and central coordinator |
| CN114791349A (en) * | 2022-06-20 | 2022-07-26 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel pressure measuring system based on digital pressure measuring module |
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| CX01 | Expiry of patent term |
Granted publication date: 20101117 |
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| CX01 | Expiry of patent term |