CN202443561U - Water leakage alarm system - Google Patents
Water leakage alarm system Download PDFInfo
- Publication number
- CN202443561U CN202443561U CN 201120497397 CN201120497397U CN202443561U CN 202443561 U CN202443561 U CN 202443561U CN 201120497397 CN201120497397 CN 201120497397 CN 201120497397 U CN201120497397 U CN 201120497397U CN 202443561 U CN202443561 U CN 202443561U
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- circuit
- water leakage
- microprocessor
- alarm
- signal amplification
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Abstract
The utility model discloses a water leakage alarm which is characterized in that a power supply circuit is connected with a microprocessor circuit and water leakage signal amplification circuits respectively; a probe is connected with an interface of the water leakage signal amplification circuit via a lead; the water leakage signal amplification circuit is connected with a pin of a microprocessor via a lead; a buzzer circuit is connected with the microprocessor circuit; a serial port of the microprocessor is connected with an RS-485 communication circuit; the RS-485 communication circuit is connected with a network module; the network module is connected with a switch; and the switch is connected with a host via the Ethernet. A water leakage signal amplifier adopts a negative feedback circuit stable working point. The microprocessor is adopted to analyze and process water leakage signals of eight paths. The detected information is transmitted to the network module via an RS-485 bus, and then the information is updated automatically via the Ethernet and is transmitted to a remote host, and finally the remote host reads and displays the information. If the water leakage condition occurs, an alarm is sent. The water leakage alarm system is easy to use, and is high in cost performance, strong in working stability. The water leakage alarm system can precisely detect the specific water leakage position, and solves the problem of inaccurate detection or high production cost existing in the prior art, thus having high social application value and strong economic effect.
Description
Technical field
The utility model belongs to the sound and light alarm field, specifically is meant a kind of water leakage alarm system.
Background technology
The water leak detectors of selling on the market at present, mainly contains three kinds.The one, the terminal that leaks as detection with induction cable is the positioning leakage point accurately; The 2nd, change according to the pressure of water and to confirm to leak, because the reason of facilitating pressure to change is a lot, can be too inaccurate so leak hunting.The 3rd, listen detection according to sound, above the pipeline of survey area, carry out sound along pipeline rout with interval 0.5～1.0m by " S " type route with the machine of finding out that leaks and listen.It is relatively stable that condition is that operation is implemented in water consumption, and surrounding environment is the time period relatively quietly.Investigation is embedded in the pipe leakage situation under the road surface, on the ground that possibly leak, carries out sign.The degree of accuracy of this method is more not high, because there are a lot of things to sound, and the correctness of Interference Detection.Though the degree of accuracy that some product detects increases, cost is too high, is unfavorable for large-scale use.
Summary of the invention
In order to overcome deficiency of the prior art, the purpose of the utility model is to provide a kind of water leakage alarm system.This system works reliable and stable, highly sensitive, power consumption is little, and price is low, and is easy to use, can detect the concrete orientation that leaks accurately, realizes long-range and on-the-spot acousto-optic warning message.
The purpose of the utility model is achieved in that
A kind of water leakage alarm system; Form by alarm circuit and sensor two parts; Adopt fieldbus respectively alarm circuit to be connected with sensor with the Ethernet connected mode, alarm circuit comprises: the signal amplification circuit that leaks, electronic switch, power circuit, buzzer circuit, microcontroller circuit and RS-485 telecommunication circuit; Sensor comprises: the circular perhaps polygon of many rings that copper-clad plate is processed overlaps probe, line and plug mutually.Power circuit is connected with the signal amplification circuit that leaks with microcontroller circuit respectively; Probe is connected through the interface of lead with the signal amplification circuit that leaks, and the signal amplification circuit that leaks is connected with the pin of microprocessor through lead, and buzzer circuit is connected on the microcontroller circuit; The serial ports of microprocessor is connected with the RS-485 telecommunication circuit; The RS-485 telecommunication circuit is connected with mixed-media network modules mixed-media, and mixed-media network modules mixed-media is connected on the switch, and switch is connected to host computer through Ethernet.
The advantage that the utility model compared with prior art has and the good effect of generation are:
1, job stability is strong.In the signal amplification circuit that leaks, adopted negative-feedback circuit, job stability is strong, can detect the concrete orientation that leaks accurately, and can provide warning message timely.The utility model is easy to use, and cost performance is higher, and all have very strong social using value and economic benefits.
2, alarm can pass through 485 cascades, also can independently use.Alarm designs 485 telecommunication circuits, each alarm leaves 2 485 interfaces, through 485 interface cascades, information is given mixed-media network modules mixed-media through the RS-485 bus between a plurality of alarms, realizes remote measurement and control.
3, realize on-the-spot and long-range sound and light alarm.Eight passages of alarm have designed eight light emitting diodes respectively, and when probe leaked, diode was lighted, and microprocessor provides alerting signal, and hummer is sounded, and simultaneously, give remote control room with information and report to the police.
4, probe has practicality.How ring overlaps probe mutually to adopt circle or polygon, in copper-clad plate, has designed a plurality of lassos insulated from each other, and is highly sensitive, can satisfy the different needs of different occasions, has stronger practicality.
5, the utility model is widely used, and can be used for the on-the-spot water leakage alarm of Computer Facilities and accelerator, also can be used as burglary-resisting system, doorbell, and level measuring rains and reports to the police, and comes water to inform, and equipment state detections etc. have very strong practical value.
Description of drawings
Fig. 1 is the utility model synoptic diagram.
Fig. 2 is the utility model structural drawing.
Fig. 3 is the utility model single channel signal amplification circuit that leaks.
Fig. 4 is the utility model RS-485 circuit.
Fig. 5 is the utility model microprocessor and peripheral circuit.
Fig. 6 is the utility model warning circuit.
Fig. 7 is the utility model power supply circuit
Embodiment
The utility model adopts 2 cover 3 group alarm devices and sensor connected modes.
Below in conjunction with accompanying drawing the utility model is implemented to make further detailed description:
Shown in Fig. 1-3; A kind of water-leakage alarm; Form by alarm circuit 2 and sensor 3 two parts; Adopt fieldbus respectively alarm circuit 2 to be connected with sensor 3 with Ethernet 1 connected mode, alarm circuit 2 comprises: the signal amplification circuit that leaks, electronic switch, power circuit, buzzer circuit, microcontroller circuit and RS-485 telecommunication circuit; Sensor 3 comprises: the circular perhaps polygon of many rings that copper-clad plate is processed overlaps probe, line and plug mutually.Power circuit is connected with the signal amplification circuit that leaks with microcontroller circuit respectively; Probe is connected through the interface of lead with the signal amplification circuit that leaks, and the signal amplification circuit that leaks is connected with the pin of microprocessor through lead, and buzzer circuit is connected on the microcontroller circuit; The serial ports of microprocessor is connected with the RS-485 telecommunication circuit; The RS-485 telecommunication circuit is connected with mixed-media network modules mixed-media, and mixed-media network modules mixed-media is connected on the switch, and switch is connected to host computer through Ethernet.
In order to reach the purpose of remote monitoring control, improve overall operation efficiency, the comparatively perfect water leakage alarm system of the utility model design one cover function.The signal amplifier that leaks adopts negative-feedback circuit (R7) stable operating point; Adopt microprocessor analysis to handle the signal that leaks of eight passages; Give mixed-media network modules mixed-media with detected information (leaking, normal etc.) through the RS-485 bus, it detects mixed-media network modules mixed-media employing mixed-signal processor is the detection alarm mixed-media network modules mixed-media of core design; According to the device distribution characteristics; Adopt fieldbus and Ethernet 1 connected mode to couple together alarm circuit 2 and sensor 3, under the support of front-end server, the field data that obtains is presented on the display screen of Central Control Room in real time and intuitively; Can obtain the ruuning situation of whole check points in the whole detection alarm system of leaking easily, thereby realize the remote monitoring of the situation of leaking of system.
As shown in Figure 3, encircle circular probe more and be connected with the signal amplification circuit that leaks, signal is through the signal amplification circuit transmission of leaking.If do not leak on the probe, Q1 can not get positive bias can not conducting, and Q2 is owing to Q1 ends.When draining to, water just has " resistance " that leaks and cause on the probe; This resistance is added to a positive voltage between the BE of Q1 through probe, and Q1 obtains positive bias and saturation conduction, makes Q2 obtain negative bias and conducting; At this moment, the voltage that obtains of the saturation voltage drop through Q2 is given microcontroller circuit.The signal amplifier that leaks adopts negative-feedback circuit (R7) stable operating point.Alarm designs 485 telecommunication circuits, as shown in Figure 4.Each alarm leaves 2 485 interfaces, passes through 485 interface cascades between a plurality of alarms.Each alarm can connect eight probes, and microprocessor analysis is handled the signal (see figure 5) of leaking of eight passages, and gives mixed-media network modules mixed-media with detected information (leaking, normal etc.) through the RS-485 bus.Simultaneously, eight of alarm passages have designed eight luminous indicating lamps respectively.When certain at scene leaks, leak on the probe, sensor is because the reason of water is short-circuited, and resistance value changes, and data transmit-receive module is passed to the bed interface to corresponding data, and leakage point is confirmed according to the difference of sending data in last bed interface.The signal amplifier work of leaking makes electronic switch be in saturation conduction, gives microprocessor analysis with information and handles; Pilot lamp is lighted; The microprocessor driven hummer is sounded, and sound and light alarm is provided at the scene, indicates the warning message (referring to Fig. 6) of particular location; Simultaneously, long-rangely also make warning.
Leaking disposes, and dries or change probe, prepares to work next time.This alarm also can independently use.As shown in Figure 7, this system adopts 3.3V low voltage power supply pattern, and power consumption is reduced greatly.
Claims (1)
1. water leakage alarm system; Form by alarm circuit (2) and sensor (3) two parts; Adopt fieldbus respectively alarm circuit (2) to be connected with sensor (3) with Ethernet (1) connected mode, alarm circuit (1) comprising: the signal amplification circuit that leaks, electronic switch, power circuit, buzzer circuit, microcontroller circuit and RS-485 telecommunication circuit; Sensor (3) comprising: the circular perhaps polygon of many rings that copper-clad plate is processed overlaps probe, line and plug mutually; It is characterized in that: power circuit is connected with the signal amplification circuit that leaks with microcontroller circuit respectively; Probe is connected through the interface of lead with the signal amplification circuit that leaks, and the signal amplification circuit that leaks is connected with the pin of microprocessor through lead, and buzzer circuit is connected on the microcontroller circuit; The serial ports of microprocessor is connected with the RS-485 telecommunication circuit; The RS-485 telecommunication circuit is connected with mixed-media network modules mixed-media, and mixed-media network modules mixed-media is connected on the switch, and switch is connected to host computer through Ethernet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120497397 CN202443561U (en) | 2011-12-02 | 2011-12-02 | Water leakage alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120497397 CN202443561U (en) | 2011-12-02 | 2011-12-02 | Water leakage alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202443561U true CN202443561U (en) | 2012-09-19 |
Family
ID=46824999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120497397 Expired - Lifetime CN202443561U (en) | 2011-12-02 | 2011-12-02 | Water leakage alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202443561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781901A (en) * | 2016-08-26 | 2018-03-09 | 刘国祥 | A kind of floor heating water leak-proof method and system |
| CN113834611A (en) * | 2021-09-23 | 2021-12-24 | 扎赉诺尔煤业有限责任公司 | Heating water leakage alarm device and method |
-
2011
- 2011-12-02 CN CN 201120497397 patent/CN202443561U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781901A (en) * | 2016-08-26 | 2018-03-09 | 刘国祥 | A kind of floor heating water leak-proof method and system |
| CN113834611A (en) * | 2021-09-23 | 2021-12-24 | 扎赉诺尔煤业有限责任公司 | Heating water leakage alarm device and method |
| CN113834611B (en) * | 2021-09-23 | 2024-01-26 | 扎赉诺尔煤业有限责任公司 | Water leakage alarm device and method for heating |
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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: 20120919 |