CN1845192A - Wireless remote pressure/pressure difference, liquid level monitoring system - Google Patents
Wireless remote pressure/pressure difference, liquid level monitoring system Download PDFInfo
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- CN1845192A CN1845192A CN 200610035178 CN200610035178A CN1845192A CN 1845192 A CN1845192 A CN 1845192A CN 200610035178 CN200610035178 CN 200610035178 CN 200610035178 A CN200610035178 A CN 200610035178A CN 1845192 A CN1845192 A CN 1845192A
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Abstract
The invention relates to a monitoring system used for data acquisition and centralized management of dispersive and remote pressure/differential pressure, liquid level, temperature and flow capacity, which is especially suitable for districts which are far from industrial frequency power supply and adopt electric battery for current supply. A wireless remote monitoring system is characterized in that it at least includes a wireless remote data-capture transmission terminal, a wireless communication network for liaison and internet and at least a monitoring center. The system is suitable for places which are unattended, remote and no electric power supply in open countries and it centralizes each dispersive monitoring spot on a software flatform to carry out centralization management.
Description
Technical field
The present invention relates to a kind of be mainly used in dispersion, the remote supervisory system of data acquisition such as pressure/differential pressure, liquid level, temperature and flow and centralized management, be suitable for from the power frequency power supply distance far away and adopt battery powered zone especially.
Background technology
Some need the place of Centralized Monitoring, and as urban water supply dispatching and monitoring system, its main order is to solve data acquisition and the monitoring of Running-water Company to each link monitoring point of supplying water; As the water level in each water intaking source, salinity, the monitoring of water quality; A urban water supply network pipe pressure, flow, the monitoring of the running status of water quality and pump, these monitoring points are distributed in tens kilometers each places to the hundreds of kilometer, the whole city, indivedual points also are located in remote, if by artificial Decentralization, need great amount of manpower and also will lag behind (managing untimely) in time, if use the wired monitoring system, erecting optical cables, the cable laying difficulty is big, the expense height, rent special telephone line to telecommunication department and apply for a lot of telephone wires again, expense is high, and some control point circuit is difficult to arrive, moreover need wait for very long dialing process when adopting telephone line, speed is slow, and operation cost is higher; Employing radio station installation workload is big and need the professional and technical personnel of process specialized training to install, maintenance is big, very easily introduce thunder and lightning, if the distance is too far can't realize, the supervisory system employing wire communication mode construction period is long in a word, work difficulty is big, operating cost is high, is not easy to extensive use.
Summary of the invention
Technical matters to be solved by this invention is, a kind of wireless remote control system is provided.
Technical matters to be solved by this invention is achieved by the following technical solution: a kind of wireless remote control system, it is characterized in that it comprises at least one wireless remote data collecting transmission terminal, wireless telecommunications public network, internet and at least one Surveillance center; This wireless remote data collecting transmission terminal comprises at least one sensor, treatment circuit, CPU (central processing unit), RS232/485 module, storer, battery and power circuit, sending/receiving module and display part; This sensor changes measurand into electrical quantity; This treatment circuit is used for the electrical quantity input signal is carried out filtering and amplification; This CPU (central processing unit) is used for sensor signal is carried out various processing and accepted various command and carry out work by certain procedure by programming, simultaneously the various digital signals that produce is stored in the storer; This transmission is accepted digital signal wireless remote transmission that module is used for being stored in storer to Surveillance center and accept the order of Surveillance center.
Wireless remote data collecting transmission terminal in the wireless remote control system of the present invention can thoroughly be exempted external disturbance, guarantee the accuracy of field data input, antistatic in addition anti-lightning strike also be a big advantage of this Terminal Design, the self-absorption of the big electric current of instant high-voltage design makes that the reliability of this terminal is very high.Low power-consumption intelligent wireless remote transmission data acquisition transmission (GPRS/CDMA) terminal is the supervisory system that core is formed, on-site data gathering circuit and central processing unit controls circuit adopt special low power dissipation design, intelligent radio teletransmission data acquisition transmission terminal is powered battery for a long time, under the long at interval situation of data transmission, but this terminal continuous working is more than 5 years.Native system adapt to open-air unmanned, at a distance, place that disperse, the non-transformer power supply, and the monitoring point of each dispersion focused on the software platform carry out unified management.
Description of drawings
Fig. 1 is a wireless remote control system structural representation of the present invention;
Fig. 2 is wireless remote data collecting transmission terminal structural representation in the wireless remote control system of the present invention.
Embodiment
Please refer to Fig. 1 and Fig. 2, a kind of wireless remote control system, it comprises a plurality of wireless remote data collecting transmission terminals 4, wireless telecommunications public network 3, internet 2 and a plurality of Surveillance center 1; This wireless remote data collecting transmission terminal 4 comprises a plurality of pressure/differential pressure/liquid levels/flow sensor sensor 48 or is transmitter, treatment circuit 42, CPU (central processing unit) 41, RS232/485 module 43, storer 44, battery and power circuit 45, sending/receiving module 46 and display part 47; This sensor 48 changes measurand into electrical quantity; This treatment circuit 42 is used for the electrical quantity input signal is carried out filtering and amplification; This CPU (central processing unit) 41 is used for sensor signal is carried out various processing and accepted various command and carry out work by certain procedure by programming, simultaneously the various digital signals that produce is stored in the storer 44; This transmission is accepted digital signal wireless remote transmission that module 46 is used for being stored in storer 44 to Surveillance center 1 and accept the order of Surveillance center 1.This wireless remote control system is with tested pressure/differential pressure by wireless remote transmission data acquisition transmission terminal 4, liquid level, flow passes and is changed to electrical quantity mV or mA signal, the digital signal that process CPU (central processing unit) 41 and transmission are accepted after the module 46 enters wireless telecommunications public network (GRPS/CDMA) 3 transmission, entering internet 2 again enters Surveillance center 1 by fixing or dynamic IP and handles, analyze, figure and data archiving, report to the police etc., the software platform by Surveillance center 1 enters intelligent radio teletransmission data acquisition transmission terminal 4 with the transmission of control command by internet 2 and wireless telecommunications public network (GRPS/CDMA) 3 and calls together several or by the switching value contact equipment is controlled simultaneously.
Core component wireless remote transmission data acquisition transmission terminal 4 courses of work among the present invention are as follows:
MV that sensor 48 or transmitter come or V or mA signal enter treatment circuit 42 through the pre-filtering treatment circuit through input terminal, send into the input port PLUS of CPU (central processing unit) 41 again, 41 pairs of input signals of CPU (central processing unit) are handled calculating, and deposit result of calculation in storer 44; Digital signal after handling is uploaded to the computing machine of Surveillance center 1 by sending/receiving module 46 according to preset program.CPU (central processing unit) 41 can also be by RS232/485 module 43 serial port setting and reading of data memory gap, data upload gap, system time, systematic parameter, on-site parameters, remote ip address, CPU (central processing unit) 41 also has higher timing and calendar computational accuracy.
Described treatment circuit 42 adopts the active digital filtering circuit, and data acquisition and filter unit quiescent current are little.Described CPU (central processing unit) 41 adopts the low-power consumption chip design, running current is minimum, also comprises software and hardware functions such as input pulse counting, switching value I/O, calendar calculate, regularly storage, regularly transmission, program down loading updating except that the analog quantity input.Described storer 44 is a ferroelectric memory, and memory capacity is 32Kbyte, and it is present fabulous province's electrical storage, and access time and stand-by period are minimum.
Described transmission is accepted module 46 and is the GPRS/CDMA transceiver module;
Battery adopts 7.2V lithium battery or mains supply in described battery and the power circuit 45
220V AC; Battery capacity: 6.5Ah;
Complete machine quiescent current≤20uA;
The measurement state, complete machine electric current≤4mA;
Delivery status maximum current≤200mA;
Delivery status average current≤40mA;
Classification of waterproof; IP68;
Accuracy class: ± 0.5%;
Difference input: input current≤1nA;
Input impedance 〉=100G Ω;
The present invention also has some other distortion or improvement, if those skilled in the art are subjected to the change or the improvement of the conspicuous unsubstantiality that inspiration of the present invention makes, all belongs to the protection domain of claims of the present invention.
Claims (10)
1, a kind of wireless remote control system, gather and manage concentratedly the data of pressure/differential pressure, liquid level, temperature, flow, it is characterized in that it comprises at least one wireless remote data collecting transmission terminal, wireless telecommunications public network, internet and at least one Surveillance center; This wireless remote data collecting transmission terminal collection site parameter information, this parameter information process wireless telecommunications public network and internet transmission are to Surveillance center, and this Surveillance center can arrive the wireless remote data collecting transmission terminal by above-mentioned internet and wireless telecommunications public network transmission steering order.
2, wireless remote control system according to claim 1, it is characterized in that this wireless remote data collecting transmission terminal comprises at least one sensor, treatment circuit, CPU (central processing unit), RS232/485 module, storer, battery and power circuit, sending/receiving module and display part; This sensor changes measurand into electrical quantity; This treatment circuit is used for the electrical quantity input signal is carried out filtering and amplification; This CPU (central processing unit) is used for sensor signal is carried out various processing and accepted various command and carry out work by certain procedure by programming, simultaneously the various digital signals that produce is stored in the storer; This transmission is accepted digital signal wireless remote transmission that module is used for being stored in storer to Surveillance center and accept the order of Surveillance center.
3, wireless remote control system according to claim 1 is characterized in that, described sensor also can be replaced by transmitter.
4, wireless remote control system according to claim 1 and 2 is characterized in that, described wireless telecommunications public network is that GPRS or cdma wireless move public network.
5, wireless remote control system according to claim 3 is characterized in that, described Surveillance center accepts the information of coming from GPRS or CDMA terminal by fixing or dynamic IP is set.
6, wireless remote control system according to claim 1 and 2 is characterized in that, described wireless remote data collecting transmission terminal is power supply with the battery.
7, wireless remote control system according to claim 1 and 2 is characterized in that, described wireless remote data collecting transmission terminal power supply is the 220V alternating current.
8, wireless remote control system according to claim 1 and 2, it is characterized in that described CPU (central processing unit) can be passed through RS232/485 serial port setting and reading of data memory gap, data upload gap, system time, systematic parameter, on-site parameters and remote ip address.
9, wireless remote control system according to claim 1 and 2 is characterized in that, described wireless remote data collecting transmission terminal input signal is voltage signal, current signal or switching value; Output signal is a switching value.
10, wireless remote control system according to claim 1 and 2 is characterized in that, described storer is a ferroelectric memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610035178 CN1845192A (en) | 2006-04-26 | 2006-04-26 | Wireless remote pressure/pressure difference, liquid level monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610035178 CN1845192A (en) | 2006-04-26 | 2006-04-26 | Wireless remote pressure/pressure difference, liquid level monitoring system |
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| Publication Number | Publication Date |
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| CN1845192A true CN1845192A (en) | 2006-10-11 |
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| CN 200610035178 Pending CN1845192A (en) | 2006-04-26 | 2006-04-26 | Wireless remote pressure/pressure difference, liquid level monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817352B (en) * | 2009-09-23 | 2013-01-02 | 兰州理工大学 | Intelligent wheel stopper system based on wireless communication |
| CN103593964A (en) * | 2013-11-21 | 2014-02-19 | 湖南强军科技有限公司 | Data transmission system and data transmission method |
| CN106487587A (en) * | 2016-10-13 | 2017-03-08 | 合肥拓发信息科技有限公司 | A kind of communication equipment remote data maintenance system |
-
2006
- 2006-04-26 CN CN 200610035178 patent/CN1845192A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817352B (en) * | 2009-09-23 | 2013-01-02 | 兰州理工大学 | Intelligent wheel stopper system based on wireless communication |
| CN103593964A (en) * | 2013-11-21 | 2014-02-19 | 湖南强军科技有限公司 | Data transmission system and data transmission method |
| CN106487587A (en) * | 2016-10-13 | 2017-03-08 | 合肥拓发信息科技有限公司 | A kind of communication equipment remote data maintenance system |
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