CN202562580U - Water volume signal generator - Google Patents
Water volume signal generator Download PDFInfo
- Publication number
- CN202562580U CN202562580U CN 201220231580 CN201220231580U CN202562580U CN 202562580 U CN202562580 U CN 202562580U CN 201220231580 CN201220231580 CN 201220231580 CN 201220231580 U CN201220231580 U CN 201220231580U CN 202562580 U CN202562580 U CN 202562580U
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- selection key
- output interface
- key
- main controller
- mcu
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Abstract
The utility model discloses a water volume signal generator, which comprises a power circuit, an MCU (Microgrammed Control Unit) main controller, a key selection unit, a liquid crystal display and an output interface, wherein the power circuit provides a power supply to the complete machine; the key selection unit is communicated with the MCU main controller; the MCU main controller controls the liquid crystal display and is connected with the output interface; and the key selection unit mainly consists of a watermeter caliber selection key, a sensor position selection key and a control selection key, wherein the watermeter caliber selection key is used for setting different signal frequencies by the MCU main controller according to different watermeter calibers, and the sensor position selection key is used for setting different signal frequencies by the MCU main controller according to different sensor positions. The water volume signal generator can provide more accurate water volume analog signals when being used, is particularly suitable for detection under the conditions of absence of a detection table and need of simulating water volume signal generation manually, and provides great convenience for watermeter detection.
Description
Technical field
The utility model relates to a kind of generator that is used to detect water meter time simulation water yield signal.
Background technology
The detection of water meter is generally done through monitor station, earlier water meter is received on the water pipe, and the water sensor Information Monitoring by on the water meter detects water meter then.If under the situation of monitor station water meter is not detected having, will detect with artificial simulated mode, promptly press from both sides water yield signal input part with tweezers, the level state that changes water yield signal input part comes the generation of simulating signal.There is following shortcoming in the mode that sort signal produces:
1, the time length of each tweezers folder can't accurately be controlled, and promptly the dutycycle of each input signal is inconsistent, possibly make the many meters of water meter or count pulse less, thereby influence test result;
2, pressed from both sides how many times with tweezers, promptly what water yield signals common property has given birth to, and needs tester oneself to remove number, possibly mistake occur because of external influence, thereby influence test result;
3, when having two water sensors, the tester need take turns the stream signal to it, occurs 1,2 situation more easily;
4, the test duration is long, consuming time relatively.
The utility model content
The purpose of the utility model is to provide a kind of water yield signal generator, and this water yield signal generator can be exported the accurately water yield signal of simulation behind burn recording software.
This water yield signal generator that the utility model provides; Comprise power circuit, MCU master controller, button selected cell, LCD, output interface; Power circuit is that complete machine provides power supply; The button selected cell is communicated by letter with the MCU master controller; MCU main controller controls LCD also is connected with output interface; Said selected cell mainly is made up of water meter bore selection key, sensing station selection key, control selection key, and water meter bore selection key is used for different water meter bores and by the MCU master controller various signals frequency is set, and the sensing station selection key is used for the different sensor position and by the MCU master controller various signals frequency is set.
In order to play suggesting effect, said button selected cell also comprises the light emitting diode of pointing out usefulness.
In order to be applicable to that promptly two water sensors are applicable to single-sensor again, said output interface adopts four-core dual output interface.
The utility model water yield generator; Carry out adaptive simulation according to the diverse location of pulse water meter upper sensor installation and the bore difference of pulse water meter; Through operation sensor choice of location button and water meter bore selection key; By the MCU master controller signal of button input is handled, exported pulse to output interface then as simulation water yield signal.Detector detects water meter according to this simulation water yield signal.The duty that the output of the utility model can be confirmed a fixed value is the capable ripple of rectangle of voltage magnitude when, and such as confirming that output has the 25% duty square wave of DC3V voltage magnitude when, water meter receives this signal and measures.Therefore the simulation water yield signal of the utility model can be much more accurate than manual simulation's water yield signal, and being specially adapted to provides great convenience not detecting stage body and need manually simulating under the situation that water yield signal takes place and detect for water meter detects.
Description of drawings
Fig. 1 is the structural representation block diagram of the utility model.
Fig. 2 is a kind of circuit diagram to Fig. 1.
Embodiment
As can beappreciated from fig. 1 the utility model water yield signal generator; Comprise power circuit, MCU master controller, button selected cell, LCD, output interface; Power circuit is that complete machine provides power supply; The button selected cell is communicated by letter with the MCU master controller, and MCU main controller controls LCD also is connected with output interface, and said selected cell mainly is made up of water meter bore selection key, sensing station selection key, control selection key.
From Fig. 2 is a kind of embodiment of the utility model; This embodiment is according to water meter bore commonly used (DN15 ~ DN25) under each flow commonly used, the turn around time that is spent, the installation site commonly used (1L of water sensor; 10L, any one in three kinds of positions of 100L), the number commonly used of sensor (single water yield signal transducer and two water yield signal transducers) designs.Power supply unit is to adopt the inferior powered battery of 7.2V lithium, respectively through becoming DC3.0V behind the voltage stabilizing chip, supplies with the total system power supply, owing to be to adopt powered battery, therefore easy to use; The output interface unit adopts two-way output, so that the signal imitation output of compatible with single water yield signal transducer and two water yield signal transducers; The button selected cell mainly is made up of light emitting diode and three buttons; Button is respectively water meter bore selection key S3, sensing station selection key S4, control selection key S5; Three buttons are received respectively on P1.2, P1.3 and the P1.4 pin of MCU; And detect through interrupt mode, and light emitting diode mainly is used for pointing out whether success of button operation; LCD mainly is used for the current bore of display water-meter, sensing station and output pulse number, intuitive display; The MCU primary controller then is responsible for the signal Processing to button, output pulse and control liquid crystal display; The sensing station selection key is according to the 1L of sensor commonly used on the pulse meter meter, 10L, and three kinds of positions of 100L are by representing for the first time the 1L position, by twice expression 10L position, by representing the 100L position for the third time, by the 4th expression 1L, by that analogy; Diverse location according to the installation of pulse meter meter upper sensor; Select the various signals output frequency; When pressing the sensing station selection key; Signal will be delivered to the MCU primary controller and handle, and the MCU primary controller will be selected corresponding signal output frequency, and the different MCU primary controllers of the number of times of pressing will be selected the various signals output frequency.The water meter bore generally has three kinds: DN15, DN20, DN25, water meter bore selection key are by showing for the first time DN15, by twice expression DN20, by representing DN25 for the third time, by the 4th expression DN15, by that analogy.Frequency produces through MCU primary controller timer internal; Set different frequency output according to different water meter bores; After the water meter bore is confirmed; Because the pulse width of each high-low level is consistent, pulse will clocklike produce, and not need manual intervention and automatic recording impulse number.Output interface has met the connection terminal J1 of a four-core; GND and OUT1 and OUT2 and GND are respectively the two-way of pulse output, when be two water sensor, respectively two groups signal wire are received two-way and export; When being single-sensor, one group that signal wire is connect arbitrarily wherein gets final product.Wiring is the crimping mode, and is easy to operate.
The utility model water yield signal generator just can be under anhydrous situation behind the burn recording software Simulated Water signal, detect water meter, for water meter detect brought greatly convenient.
Claims (3)
1. water yield signal generator; Comprise power circuit, MCU master controller, button selected cell, LCD, output interface; Power circuit is that complete machine provides power supply; The button selected cell is communicated by letter with the MCU master controller, and MCU main controller controls LCD also is connected with output interface, and said selected cell mainly is made up of water meter bore selection key, sensing station selection key, control selection key; Water meter bore selection key is used for different water meter bores and by the MCU master controller various signals frequency is set, and the sensing station selection key is used for the different sensor position and by the MCU master controller various signals frequency is set.
2. according to the said water yield signal generator of claim 1, it is characterized in that said button selected cell also comprises the light emitting diode of pointing out usefulness.
3. according to claim 1 or 2 said water yield signal generators, it is characterized in that said output interface adopts four-core dual output interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231580 CN202562580U (en) | 2012-05-23 | 2012-05-23 | Water volume signal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231580 CN202562580U (en) | 2012-05-23 | 2012-05-23 | Water volume signal generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202562580U true CN202562580U (en) | 2012-11-28 |
Family
ID=47212227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220231580 Expired - Lifetime CN202562580U (en) | 2012-05-23 | 2012-05-23 | Water volume signal generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202562580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129383A (en) * | 2020-09-25 | 2020-12-25 | 上海桑锐电子科技股份有限公司 | Pulse metering test device and test method for intelligent meter scheme board |
-
2012
- 2012-05-23 CN CN 201220231580 patent/CN202562580U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129383A (en) * | 2020-09-25 | 2020-12-25 | 上海桑锐电子科技股份有限公司 | Pulse metering test device and test method for intelligent meter scheme board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |