CN202120430U - Wireless awakening circuit of wireless remote water meter - Google Patents
Wireless awakening circuit of wireless remote water meter Download PDFInfo
- Publication number
- CN202120430U CN202120430U CN2011201693574U CN201120169357U CN202120430U CN 202120430 U CN202120430 U CN 202120430U CN 2011201693574 U CN2011201693574 U CN 2011201693574U CN 201120169357 U CN201120169357 U CN 201120169357U CN 202120430 U CN202120430 U CN 202120430U
- Authority
- CN
- China
- Prior art keywords
- wireless
- water meter
- microprocessor
- circuit
- radio
- 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
Landscapes
- Selective Calling Equipment (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model provides a wireless awakening circuit of a wireless remote water meter. The wireless awakening circuit comprises a wireless module and a microprocessor. The wireless module comprises a wireless transceiving chip U1 and connected with a TXD end, an RXD end, a P2.0 end, a P1.0 end and a P2.0 end of the microprocessor respectively through a U1DIN end, a DOUT end, a CS end, a PWR end and a TXEN end of the wireless transceiving chip U1, a DIN end and a DOUT end of the microprocessor are used for transceiving data, the wireless transceiving chip U1 selects frequencies under the control of the CS end, the work and the sleep of the wireless transceiving chip U1 are controlled by the PWR end, and a transmission or reception state of the wireless transceiving chip U1 is controlled by the TXEN end. The utility model has the beneficial effects that the wireless awakening circuit is applied to large-aperture underground water meters or regions without condition for the installation of acquirers, so that the wireless meter reading can be realized. Simultaneously, a self-contained battery in a water meter is used without an outside power supply, therefore, the power consumption is low, and wireless remote transmission and upload operations start through the wireless awakening circuit when a person reads the water meter; and the self-contained battery is in a sleep state and the wireless awakening circuit only has low power consumption of microampere-level current when the person does not read the water meter, therefore, the long-term work of the self-contained battery can be ensured.
Description
Technical field
The utility model relates to a kind of wireless awakening circuit that is used for the circuit, particularly radio remote transmitting water meter of the wireless telecommunications that wireless remote transmission checks meter.
Background technology
Wireless telecommunications are in the every profession and trade widespread use, particularly in the application of water supply industry.The radio remote transmitting water meter that is used for radio meter register at present; In order to reduce the internal electric source power consumption; All be to adopt near initiatively report mode, promptly every fixing date and time, water meter initiatively to send to be positioned at the water meter 100m to 200m collector; Collector can be collected the data of many water meters respectively, by the person of checking meter the data of collector is carried out that machine is copied or write by hand again.This mode only is applicable to the small diameter watermeter in the residential quarters that the resident concentrates.And, the environmental baseline of collector is not installed nearby for the big relatively water meter that is installed on the down-hole of bore, make radio meter register become a difficult problem.Because be loaded on the large-diameter water meter of down-hole, the place and environment condition is very severe all, and no external power supply is capable of using, can only use inside power autonomous, and regularly reporting does not have receiving trap, and the real-time report power consumption is too big again, can not realize radio meter register.
Summary of the invention
For solving the problem that exists in the above-mentioned technology, the purpose of the utility model is to provide a kind of wireless awakening circuit of radio remote transmitting water meter, is beneficial to realize the radio meter register under the multiple varying environment, and the data in real time of water meter, accurate reduces power consumption.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts provides a kind of wireless awakening circuit of radio remote transmitting water meter, and this wireless awakening circuit includes wireless module and microprocessor; Wherein: said wireless module includes radio transmitting and receiving chip U1, and wireless module and microprocessor are through the U1DIN of radio transmitting and receiving chip U1, DOUT; CS, PWR, TXEN end respectively with the TXD of microprocessor; RXD, P2.0, P1.0; The P2.0 end is connected, the DIN of microprocessor and DOUT transceive data, and U1 selects frequency through CS control radio transmitting and receiving chip; Through work and the sleep of PWR control radio transmitting and receiving chip U1, U1 is in transmission or accepting state through TXEN control radio transmitting and receiving chip.
The effect of the utility model is that this circuit is bigborely to be installed on the water meter of down-hole or zone that the condition that is provided with is installed collector provides a kind of wireless awakening circuit of radio remote transmitting water meter; The application of this circuit; Make to be installed on the bigbore water meter in down-hole and not have the water meter that the collector condition is installed, can realize radio meter register.Only use the inner self-contained battery of water meter without external power supply simultaneously, power consumption is very low, begins wireless remote transmission through the wireless awakening circuit when checking meter and reports work.When not checking meter, do not carry out reporting functions, often be in sleep pattern, this moment, power consumption was very low, had only the microampere order electric current, guaranteed the long-term work of self-contained battery.
Description of drawings
Fig. 1 is the utility model wireless module schematic diagram;
Fig. 2 is the block diagram that is connected of the utility model wireless module and microprocessor.
Embodiment
In conjunction with accompanying drawing and embodiment the wireless awakening circuit structure of the radio remote transmitting water meter of the utility model is explained.
The wireless awakening circuit structure of the radio remote transmitting water meter of the utility model mainly includes two parts, and promptly wireless module and microprocessor are formed.
Said wireless module includes radio transmitting and receiving chip U1, and wireless module and microprocessor are through the U1DIN of radio transmitting and receiving chip U1, DOUT, CS; PWR, TXEN end respectively with the TXD of microprocessor, RXD, P2.0; P1.0, the P2.0 end is connected the DIN of microprocessor and DOUT transceive data; U1 selects frequency through CS control radio transmitting and receiving chip, and through work and the sleep of PWR control radio transmitting and receiving chip U1, U1 is in transmission or accepting state through TXEN control radio transmitting and receiving chip.
Said wireless module comprises radio transmitting and receiving chip nRF401 and crystal oscillating circuit, loop filter, power setting resistance, power supply decoupling capacitance, dry electric capacity, antenna circuit disappear.Microprocessor chip is the MSP430F413 chip, and wireless module links to each other through DIN, DOUT, CD, PER, TXEN with microprocessor.After radio transmitting and receiving chip receives the lasting set specific frequency signal that sends of the hand-held set of checking meter when user radio is checked meter,, realize the radio meter register function through beginning the wireless remote transmission reported data by radio transmitting and receiving chip nRF401 after the microprocessor processes.Check meter after the completion, get into low power sleep mode automatically.Do not have the period circuit of checking meter and do not carry out meter-reading function.
As shown in Figure 1, U1 is radio transmitting and receiving chip nRF401 among the figure.Constitute crystal oscillating circuit by R1, X1, C1 and C2, C3, C4 and R2 makeup ring path filter.R3 is a power setting resistance.C5 is the power supply decoupling capacitance, and C6 and C7 are de-noising electric capacity.C10, C11, R4 forms antenna circuit.DIN, DOUT are the data input and output side of wireless chip U1, connect the receipts of microprocessor respectively and send out.
As shown in Figure 2, wireless module and microprocessor pass through DIN, DOUT, and CS, PWR, TXEN links to each other.Microprocessor is through DIN and DOUT income data, and control CS selects frequency, PWR control wireless chip work and sleep, and TXEN control wireless chip is in and sends or accepting state.
Radio transmitting and receiving chip is gathered the modulation system of FSK, is example with the 433.92MHz frequency, and when receiving the signal of 433.92MHz+15KHz, DOUT exports high level; When receiving the signal of 433.92MHz-15KHz, the DOUT output low level.
The principle of work of wireless awakening: wireless module is in sleep pattern usually, periodically gets into receiving mode, sees if there is signal and comes in, if there is not useful signal, gets into sleep pattern again.Receiving mode electric current 17mA, sleep current 2uA will reduce power consumption, will shorten the time and prolongation gap periods of opening reception as much as possible, but can not influence the work of normally checking meter again.Its optimum condition is for accepting 3 milliseconds of times, gap periods 3 seconds, and at this moment the average working current of complete machine is not more than 30 μ A, and the self-contained battery life-span was greater than 5 years.
When meter reading; The hand-held set of checking meter continues to send the 433.92MHz+15KHz frequency signal; Radio transmitting and receiving chip U1 receives the 433.92MHz+15KHz frequency signal can put high level at the DOUT pin, continues high level and just meets TXEN and continue to put low when microprocessor receives, and waits for that hand-held set sends the meter reading instruction; Carry out reported data, get into sleep pattern behind the completion meter-reading function automatically.
Claims (4)
1. the wireless awakening circuit of a radio remote transmitting water meter, this wireless awakening circuit includes wireless module and microprocessor, it is characterized in that: said wireless module includes radio transmitting and receiving chip U1, and wireless module and microprocessor are through the U1DIN of radio transmitting and receiving chip U1; DOUT, CS, PWR; TXEN end respectively with the TXD of microprocessor, RXD, P2.0; P1.0, the P2.0 end is connected the DIN of microprocessor and DOUT transceive data; U1 selects frequency through CS control radio transmitting and receiving chip, and through work and the sleep of PWR control radio transmitting and receiving chip U1, U1 is in transmission or accepting state through TXEN control radio transmitting and receiving chip.
2. the wake-up circuit of a kind of radio remote transmitting water meter according to claim 1; It is characterized in that: the loop filter that said wireless module also includes the crystal oscillating circuit of being made up of resistance R 1, X1, capacitor C 1 and capacitor C 2 that is connected with radio transmitting and receiving chip U1, be made up of capacitor C 3, capacitor C 4 and resistance R 2, by capacitor C 10; Capacitor C 11, antenna circuit, phase-locked loop circuit that resistance R 4 is formed.
3. the wake-up circuit of a kind of radio remote transmitting water meter according to claim 1, it is characterized in that: said radio transmitting and receiving chip U1 model is nRF401.
4. the wake-up circuit of a kind of radio remote transmitting water meter according to claim 1, it is characterized in that: said microprocessor is the MSP430F413 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201693574U CN202120430U (en) | 2011-05-25 | 2011-05-25 | Wireless awakening circuit of wireless remote water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201693574U CN202120430U (en) | 2011-05-25 | 2011-05-25 | Wireless awakening circuit of wireless remote water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202120430U true CN202120430U (en) | 2012-01-18 |
Family
ID=45461478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201693574U Expired - Fee Related CN202120430U (en) | 2011-05-25 | 2011-05-25 | Wireless awakening circuit of wireless remote water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202120430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313365A (en) * | 2013-05-22 | 2013-09-18 | 长沙威胜信息技术有限公司 | Remote control metering system |
-
2011
- 2011-05-25 CN CN2011201693574U patent/CN202120430U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313365A (en) * | 2013-05-22 | 2013-09-18 | 长沙威胜信息技术有限公司 | Remote control metering system |
| CN103313365B (en) * | 2013-05-22 | 2016-04-13 | 长沙威胜信息技术有限公司 | Long-distance Control metering system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201867643U (en) | Intelligent home central controller | |
| WO2007139842A3 (en) | Automated meter reading system, communication and control network for automated meter reading, meter data collector, and associated methods | |
| CN101833323A (en) | Greenhouse dripping and irrigating locale monitoring system based on wireless embedded technology | |
| CN103944648A (en) | System device and method based on pipeline sound wave communication | |
| CN100357984C (en) | Method for transmitting measurement data quantitatively and periodically from a wireless meter reading system terminal | |
| CN203165194U (en) | Near-real-time ultra-low power consumption wireless ad hoc network image pick-up direct reading gas meter reading system | |
| CN202120430U (en) | Wireless awakening circuit of wireless remote water meter | |
| CN203595937U (en) | Remote monitoring and controlling device of geothermal well | |
| CN204010288U (en) | A kind of power information remote wireless terminal collector | |
| CN203376007U (en) | Gas meter used for remote and automatic meter reading | |
| CN207037377U (en) | Agricultural greenhouse monitoring system based on LoRa | |
| CN201698572U (en) | Bluetooth wireless measuring system for engineering machinery | |
| CN203870096U (en) | Wireless water quality ammonia nitrogen monitoring device | |
| CN203325177U (en) | Meter reading system based on low-power-consumption wireless technology | |
| CN203323787U (en) | Multifunctional measurement and control system | |
| CN203177915U (en) | Ultra-low power consumption camera-shooting and direct-reading gas meter supporting wireless ad hoc network | |
| CN202584404U (en) | Wireless water meter acquisition and control device | |
| CN200993005Y (en) | Oil well working condition monitoring device | |
| CN203386342U (en) | Wireless data acquisition terminal | |
| CN207337240U (en) | A kind of temperature monitoring system of low-power consumption | |
| CN202957984U (en) | Embedded type wireless network monitoring terminal | |
| CN102843386B (en) | Radio frequency communication module for fault indicator of power distribution network line and applications of radio frequency communication module | |
| CN104581907A (en) | Wireless communicator, meter inquiry device and meter inquiry system | |
| CN215066647U (en) | Integral type buries type soil temperature and humidity detection device | |
| CN205373763U (en) | But area plug storage device's greenhouse environmental data collection system |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20170525 |