CN105277320A - Liquid leakage detection sensor and system - Google Patents
Liquid leakage detection sensor and system Download PDFInfo
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- CN105277320A CN105277320A CN201410270364.1A CN201410270364A CN105277320A CN 105277320 A CN105277320 A CN 105277320A CN 201410270364 A CN201410270364 A CN 201410270364A CN 105277320 A CN105277320 A CN 105277320A
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Abstract
The invention provides a liquid leakage detection sensor and system, and aims at solving the problem that power consumption of a present water sensor is high due to the fact that the water sensor cannot detect whether a light reflection path is cut off and water leakage occurs without continuous emission of infrared light. The liquid leakage detection sensor comprises a detection module and a detector; when the resistance between two detection electrodes of the detector is lower than a first threshold, the detection module outputs information that an environment to be detected is in a liquid leakage state; when the resistance between the two detection electrodes of the detector is greater than a second threshold, the detection module outputs information that the environment to be detected is not in the liquid leakage state; the first threshold is lower than the second threshold; and the more the parts of the two detection electrodes immersed by leaked conductive liquid are, the lower the resistance between the detection electrodes is.
Description
Technical field
The present invention relates to electric and electronic technical field, particularly relate to a kind of leakage acquisition sensor and system.
Background technology
Water sensor is relatively wider in industrial circle range of application, and whether be mainly used to detect in telecommunications monitoring field has the situation of leaking to occur.Traditional water sensor great majority adopt infrared electro principle to make, when photoelectric probe is immersed in the water, the reflex circuit of light is cut off, after sensor can't detect reflected light, meaning that this has leakage to occur, providing signal for detecting by pilot relay adhesive or other modes to outside.
Because this kind of sensor needs to continue to launch infrared light, whether the reflex circuit could detecting light is cut off, thus has determined whether that water leakage situation occurs, and this makes this biosensor power consumption higher, and its power consumption is generally at more than 30mA.
In sum, traditional water sensor launches infrared light because needs are lasting, and whether the reflex circuit could detecting light is cut off, thus has determined whether that water leakage situation occurs, and this causes its power dissipation ratio higher.
Summary of the invention
Embodiments provide a kind of leakage acquisition sensor and system, infrared light is launched because needs are lasting in order to solve existing water sensor, whether the reflex circuit could detecting light is cut off, thus has determined whether that water leakage situation occurs, and this causes the higher problem of its power dissipation ratio.
Based on the problems referred to above, a kind of leakage acquisition sensor that the embodiment of the present invention provides, comprises detection module and detector;
Described detection module, when being less than first threshold for the resistance between two exploring electrodes of described detector, exports the information that environment to be measured is in leakage state; And the resistance between two exploring electrodes of described detector is when being greater than Second Threshold, export the information that environment to be measured is in non-leakage state; Described first threshold is less than described Second Threshold;
Wherein, two exploring electrodes of described detector are more by the part of the conducting liquid submergence revealed, and the resistance between two exploring electrodes of described detector is less.
A kind of leakage detection system that the embodiment of the present invention provides, comprises the leakage acquisition sensor that the embodiment of the present invention provides.
The beneficial effect of the embodiment of the present invention comprises:
The leakage acquisition sensor that the embodiment of the present invention provides and system, because two exploring electrodes of the detector in sensor are more by the part of conducting liquid submergence revealed, resistance between these two exploring electrodes of this detector is less, therefore, only according to the value of the resistance between these two exploring electrodes of this detector, needs just can determine whether environment to be measured is in leakage state, and do not need to continue to launch Infrared, and then whether be cut off according to the reflex circuit of light, determine whether that leakage situation occurs, it reduce the power consumption of sensor.
Accompanying drawing explanation
One of structural representation of the leakage detecting sensor that Fig. 1 provides for the embodiment of the present invention;
The structural representation two of the leakage detecting sensor that Fig. 2 a provides for the embodiment of the present invention;
The structural representation three of the leakage detecting sensor that Fig. 2 b provides for the embodiment of the present invention;
The structural representation four of the leakage detecting sensor that Fig. 3 a provides for the embodiment of the present invention;
The structural representation five of the leakage detecting sensor that Fig. 3 b provides for the embodiment of the present invention;
The structural representation six of the leakage detecting sensor that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Embodiments provide a kind of leakage acquisition sensor and system, the value of the resistance between this sensor only needs according to two exploring electrodes of detector just can determine whether environment to be measured is in leakage state, and do not need to continue to launch Infrared, and then whether be cut off according to the reflex circuit of light, determine whether that leakage situation occurs, therefore, power consumption is reduced.
Below in conjunction with Figure of description, a kind of leakage acquisition sensor provide the embodiment of the present invention and the embodiment of system are described.
A kind of leakage acquisition sensor that the embodiment of the present invention provides, as shown in Figure 1, comprises detection module 11 and detector 12;
Detection module 11, when being less than first threshold for the resistance between two exploring electrodes of detector 12, exports the information that environment to be measured is in leakage state; And the resistance between these two exploring electrodes of this detector 12 is when being greater than Second Threshold, export the information that environment to be measured is in non-leakage state; First threshold is less than Second Threshold; Wherein, two exploring electrodes of this detector are more by the part of the conducting liquid submergence revealed, and the resistance between these two exploring electrodes of this detector is less.
Such as, detector is the inductive means of water sensor, and time dry, the resistance between two exploring electrodes of detector is " infinity ".Kept flat on ground by detector, if when detector is dipped into water gradually, the resistance variations between two exploring electrodes of detector is the process of a nonlinear reduction of continuous print.Such as: when two exploring electrodes of detector have just been dipped into water, between these two exploring electrodes, resistance is reduced to about 500K immediately, until these two exploring electrodes are all dipped into water, between these two exploring electrodes, resistance is reduced within 30K-80K scope.
The information that wherein detection module 11 transmits can be transferred to leakage detection system by wired mode, also can adopt and be wirelessly transmitted to leakage detection system, to take appropriate measures.
Alternatively, detection module 11, as shown in Fig. 2 a or Fig. 2 b, specifically comprises the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4 and the first voltage comparator VC1.
In fig. 2 a, one end of first resistance R1 receives the first voltage signal V1, the i.e. voltage of power supply VCC, the other end of the first resistance R1 connects an exploring electrode of detector 12 respectively, the i.e. negative input end IN-of positive exploring electrode Td+ and the first voltage comparator VC1, another exploring electrode of detector 12, namely negative exploring electrode Td-receives the second voltage signal V2, i.e. earth signal; Second resistance R2 and the 3rd resistance R3 is connected between power supply VCC and ground wire, one end that second resistance R2 is connected with the 3rd resistance R3 is connected the positive input terminal IN+ of the first voltage comparator VC1 and one end of the 4th resistance R4 respectively, and the other end of the 4th resistance R4 connects the output terminal OUT of the first voltage comparator VC1;
In fig. 2 a, the voltage of the first voltage signal V1 is higher than the voltage of the second voltage signal V2, first voltage comparator VC1, during the first voltage threshold stored lower than the first voltage comparator VC1 for the voltage received at the negative input end IN-of the first voltage comparator VC1, export the information that environment to be measured is in leakage state; And when the second voltage threshold that the voltage that the negative input end IN-of the first voltage comparator VC1 receives stores higher than the first voltage comparator VC1, export the information that environment to be measured is in non-leakage state; First voltage threshold is less than the second voltage threshold.
When the first voltage comparator is ADCMP370 chip, in fig. 2 a, if environment to be measured is in non-leakage state, resistance between two exploring electrodes of then detector is " infinity ", then the voltage of the negative input end IN-of the first voltage comparator VC1 is VCC, higher than the second threshold voltage, its output is low level " 0 " (exporting the information that environment to be measured is in non-leakage state).When two exploring electrodes of detector 12 soak gradually, the non-linear reduction of resistance meeting continuous print between exploring electrode, when the resistance value of design between exploring electrode is lower than 200K, the voltage of the negative input end IN-of the first voltage comparator VC1 is lower than the first voltage threshold, and its output is high level " 1 " (exporting the information that environment to be measured is in leakage state).When two exploring electrode immersions of detector 12 reduce, the non-linear increase of resistance meeting continuous print between two exploring electrodes of detector 12, design is when its resistance value is higher than 1.5M, the voltage of the negative input end IN-of the first voltage comparator is higher than the second threshold voltage, and its output is low level " 0 " (exporting the information that environment to be measured is in non-leakage state).
In figure 2b, one end of first resistance R1 receives the first voltage signal V1, i.e. earth signal, the other end of the first resistance R1 connects an exploring electrode of detector 12 respectively, the i.e. negative input end IN-of negative exploring electrode Td-and the first voltage comparator VC1, another exploring electrode of detector 12, namely positive exploring electrode Td+ receives the second voltage signal V2, i.e. the voltage of power supply VCC; Second resistance R2 and the 3rd resistance R3 is connected between power supply VCC and ground wire, one end that second resistance R2 is connected with the 3rd resistance R3 is connected the positive input terminal IN+ of the first voltage comparator VC1 and one end of the 4th resistance R4 respectively, and the other end of the 4th resistance R4 connects the output terminal OUT of the first voltage comparator VC1;
In figure 2b, the voltage of the first voltage signal V1 is lower than the voltage of the second voltage signal V2, first voltage comparator VC1, during the tertiary voltage threshold value stored higher than the first voltage comparator VC1 for the voltage received at the negative input end IN-of the first voltage comparator VC1, export the information that environment to be measured is in leakage state; And when the 4th voltage threshold that the voltage that the negative input end IN-of the first voltage comparator VC1 receives stores lower than the first voltage comparator VC1, export the information that environment to be measured is in non-leakage state; Tertiary voltage threshold value is greater than the 4th voltage threshold.
When the first voltage comparator is ADCMP370 chip, in figure 2b, if environment to be measured is in non-leakage state, resistance between two exploring electrodes of then detector is " infinity ", then the voltage of the negative input end IN-of the first voltage comparator VC1 is the voltage of earth signal, i.e. GND, lower than the 4th threshold voltage, its output is low level " 0 " (exporting the information that environment to be measured is in non-leakage state).When two exploring electrodes of detector 12 soak gradually, the non-linear reduction of resistance meeting continuous print between exploring electrode, when the resistance value of design between exploring electrode is lower than 200K, the voltage of the negative input end IN-of the first voltage comparator VC1 is higher than tertiary voltage threshold value, and its output is high level " 1 " (exporting the information that environment to be measured is in leakage state).When two exploring electrode immersions of detector 12 reduce, the non-linear increase of resistance meeting continuous print between two exploring electrodes of detector 12, design is when its resistance value is higher than 1.5M, the voltage of the negative input end IN-of the first voltage comparator is lower than the 4th threshold voltage, and its output is low level " 0 " (exporting the information that environment to be measured is in non-leakage state).
Alternatively, detection module 11, as shown in Fig. 3 a or Fig. 3 b, specifically comprises the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8 and the second voltage comparator VC2.
In fig. 3 a, one end of 5th resistance R5 receives tertiary voltage signal V3, the i.e. voltage of power supply VCC, the other end of the 5th resistance R5 connects an exploring electrode in detector 12 respectively, i.e. one end of positive exploring electrode Td+ and the 6th resistance R6, another exploring electrode in detector 12, namely negative exploring electrode Td-receives the 4th voltage signal V4, i.e. earth signal, the other end of the 6th resistance R6 connects the positive input terminal IN+ of the second voltage comparator VC2; 7th resistance R7 and the 8th resistance R8 is connected between the positive input terminal IN+ of power supply VCC and the second voltage comparator VC2, and one end that the 7th resistance R7 is connected with the 8th resistance R8 is connected the output terminal OUT of the second voltage comparator VC2; The negative input end IN-of the second voltage comparator VC2 receives reference voltage Ref;
In fig. 3 a, the voltage of tertiary voltage signal V3 is higher than the voltage of the 4th voltage signal V4, second voltage comparator VC2, during the 5th voltage threshold stored lower than the second voltage comparator VC2 for the voltage received at the positive input terminal IN+ of the second voltage comparator VC2, export the information that environment to be measured is in leakage state; And when the 6th voltage threshold that the voltage that the positive input terminal IN+ of the second voltage comparator VC2 receives stores higher than the second voltage comparator VC2, export the information that environment to be measured is in non-leakage state; 5th voltage threshold is less than the 6th voltage threshold.
When the first voltage comparator is ADCMP370 chip, in fig. 3 a, if environment to be measured is in non-leakage state, resistance between two exploring electrodes of then detector is " infinity ", then the voltage of the positive input terminal IN+ of the second voltage comparator VC2 is VCC, higher than the 6th threshold voltage, its output is low level " 0 " (exporting the information that environment to be measured is in non-leakage state).When two exploring electrodes of detector 12 soak gradually, the non-linear reduction of resistance meeting continuous print between exploring electrode, when the resistance value of design between exploring electrode is lower than 200K, the voltage of the positive input terminal IN+ of the second voltage comparator VC2 is lower than the 5th voltage threshold, and its output is high level " 1 " (exporting the information that environment to be measured is in leakage state).When two exploring electrode immersions of detector 12 reduce, the non-linear increase of resistance meeting continuous print between two exploring electrodes of detector 12, design is when its resistance value is higher than 1.5M, the voltage of the positive input terminal IN+ of the second voltage comparator is higher than the 6th threshold voltage, and its output is low level " 0 " (exporting the information that environment to be measured is in non-leakage state).
In fig 3b, one end of 5th resistance R5 receives the 4th voltage signal V4, i.e. earth signal, the other end of the 5th resistance R5 connects an exploring electrode in detector 12 respectively, i.e. one end of negative exploring electrode Td-and the 6th resistance R6, another exploring electrode in detector 12, namely positive exploring electrode Td+ receives tertiary voltage signal V3, the i.e. voltage of power supply VCC, the other end of the 6th resistance R6 connects the positive input terminal IN+ of the second voltage comparator VC2; 7th resistance R7 and the 8th resistance R8 is connected between the positive input terminal IN+ of power supply VCC and the second voltage comparator VC2, and one end that the 7th resistance R7 is connected with the 8th resistance R8 is connected the output terminal OUT of the second voltage comparator VC2; The negative input end IN-of the second voltage comparator VC2 receives reference voltage Ref;
In fig 3b, the voltage of tertiary voltage signal V3 is lower than the voltage of the 4th voltage signal V4, second voltage comparator VC2, during the 7th voltage threshold stored lower than the second voltage comparator VC2 for the voltage received at the positive input terminal IN+ of the second voltage comparator VC2, export the information that environment to be measured is in leakage state; And when the 8th voltage threshold that the voltage that the positive input terminal IN+ of the second voltage comparator VC2 receives stores higher than the second voltage comparator VC2, export the information that environment to be measured is in non-leakage state; 7th voltage threshold is greater than the 8th voltage threshold.
When the first voltage comparator is ADCMP370 chip, in fig 3b, if environment to be measured is in non-leakage state, resistance between two exploring electrodes of then detector is " infinity ", then the voltage of the positive input terminal IN+ of the second voltage comparator VC2 is the voltage of earth signal, i.e. GND, lower than the 8th threshold voltage, its output is low level " 0 " (exporting the information that environment to be measured is in non-leakage state).When two exploring electrodes of detector 12 soak gradually, the non-linear reduction of resistance meeting continuous print between exploring electrode, when the resistance value of design between exploring electrode is lower than 200K, the voltage of the positive input terminal IN+ of the second voltage comparator VC2 is higher than the 7th voltage threshold, and its output is high level " 1 " (exporting the information that environment to be measured is in leakage state).When two exploring electrode immersions of detector 12 reduce, the non-linear increase of resistance meeting continuous print between two exploring electrodes of detector 12, design is when its resistance value is higher than 1.5M, the voltage of the positive input terminal IN+ of the second voltage comparator VC2 is lower than the 8th threshold voltage, and its output is low level " 0 " (exporting the information that environment to be measured is in non-leakage state).
In the detection module shown in Fig. 2 a, Fig. 2 b, Fig. 3 a and Fig. 3 b, resistance between the exploring electrode exporting detector when environment to be measured is in the information of non-leakage state, with the choosing of resistance between the exploring electrode exporting detector when environment to be measured is in the information of leakage state is crucial, this is related to the setting of voltage threshold.Change the sensitivity that the resistance between the exploring electrode exporting detector when environment to be measured is in the information of non-leakage state can regulate immersion to report to the police, when the resistance changed between the exploring electrode exporting detector when environment to be measured is in the information of leakage state can regulate immersion to reduce, exit the sensitivity of warning.
Wherein, the first voltage comparator and the second voltage comparator can select the voltage comparator of super low-power consumption, to reduce the power consumption of leakage acquisition sensor further.
Further, a kind of leakage acquisition sensor that the embodiment of the present invention provides, as shown in Figure 4, also comprises radio-frequency module 41; Radio-frequency module 41, for when the status information of the environment to be measured received from detection module 11 changes, stops dormancy and sends the status information of environment to be measured after changing according to the time interval of presetting to the control system of leakage acquisition sensor; And after receiving the confirmation of this control system, stop the status information sending the environment to be measured after changing to this control system, and enter dormancy.
That is, if when the status information of environment to be measured becomes leakage from non-leakage, radio-frequency module 41 can stop dormancy, and environment to be measured is in the time interval of information according to setting of leakage state, as 10s, send to the control system of leakage acquisition sensor, and after receiving the confirmation of this control system, no longer send to this control system the information that environment to be measured is in leakage state, and reenter dormancy; If when the status information of environment to be measured becomes non-leakage from leakage, radio-frequency module 41 also can stop dormancy, and environment to be measured is in the time interval of information according to setting of non-leakage state, as 10s, send to the control system of leakage acquisition sensor, and after receiving the confirmation of this control system, no longer send to this control system the information that environment to be measured is in non-leakage state, and reenter dormancy.
Therefore, when the status information of environment to be measured does not change, radio-frequency module is in dormant state, thus reduces the power consumption of leakage acquisition sensor.In addition when adopting radio-frequency module to communicate with the control information of leakage acquisition sensor, the inconvenience that when can avoid adopting wired connection, line is more, and avoid the kwh loss of wired connection.
Radio-frequency module in the leakage acquisition sensor that the embodiment of the present invention provides can be CC2530, detection module exports the signal come and is linked in two I/O pin of CC2530, be because the I/O pin of CC2530 can only detect rising edge or negative edge, and rising edge and negative edge cannot be detected simultaneously.Need in practical application to detect that the status information of environment to be measured becomes leakage (" 1 ") from non-leakage (" 0 "), also need to detect that the status information of environment to be measured becomes non-leakage (" 0 ") from leakage (" 1 "), so same signal must be incorporated in two pins.In software, first I/O pin is set to rising edge interrupt, second I/O pin is set to negative edge and interrupts.When the status information of environment to be measured has any change, all can detect.When the status information of environment to be measured changes to " 1 " from " 0 ", first I/O pin of CC2530 detects that rising edge changes, and CC2530 stops dormancy, produces rising edge and interrupts, state " 1 " is sent to control system.When the status information of environment to be measured changes to " 0 " from " 1 ", second I/O pin of CC2530 detects that negative edge changes, and CC2530 stops dormancy, produces negative edge and interrupts, state " 0 " is sent to control system.
Alternatively, radio-frequency module 41 also for this control system networking success after, the address information of this radio-frequency module 41 leakage acquisition sensor will be comprised, such as MAC Address, short address etc., with the type information of this leakage acquisition sensor, i.e. device type, sends to described control system, to notify the existence of this leakage acquisition sensor of this control system.
Alternatively, radio-frequency module 41 is communicated with described control system by a network channel in the multiple different network channel in consolidated network type, thus when installing at the scene, if the existence current network channel having network of the same type detected, can by order be changed to other and on network channel.Concrete changing mode can be: when the radio-frequency module in leakage acquisition sensor does not enter dormancy, control system transmitting order to lower levels is in the radio-frequency module of leakage acquisition sensor, the network channel of radio-frequency module renewal self, then restarts, again joins in set network.
Alternatively, radio-frequency module 41 is not also for when entering dormancy, receiving the signal strength test order of described control system transmission, send test massage to described control system, thus make control system judge whether the position of leakage acquisition sensor is installed suitable according to the intensity of the test signal received.
The leakage acquisition sensor that the embodiment of the present invention provides can by lithium manganese dioxide cell, and namely button cell is powered.
The leakage detection system that the embodiment of the present invention provides, comprises the leakage acquisition sensor that the embodiment of the present invention provides.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the present invention can by hardware implementing, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, the technical scheme of the embodiment of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can carry out being distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. a leakage acquisition sensor, is characterized in that, comprises detection module and detector;
Described detection module, when being less than first threshold for the resistance between two exploring electrodes of described detector, exports the information that environment to be measured is in leakage state; And the resistance between two exploring electrodes of described detector is when being greater than Second Threshold, export the information that environment to be measured is in non-leakage state; Described first threshold is less than described Second Threshold;
Wherein, two exploring electrodes of described detector are more by the part of the conducting liquid submergence revealed, and the resistance between two exploring electrodes of described detector is less.
2. leakage acquisition sensor as claimed in claim 1, it is characterized in that, described detection module specifically comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance and the first voltage comparator;
One end of described first resistance receives the first voltage signal, the other end of described first resistance connects an exploring electrode of described detector and the negative input end of described first voltage comparator respectively, and another exploring electrode of described detector receives the second voltage signal;
Described second resistance and described 3rd resistant series are between power supply and ground wire, one end that described second resistance is connected with described 3rd resistance is connected the positive input terminal of described first voltage comparator and one end of the 4th resistance respectively, and the other end of described 4th resistance connects the output terminal of described first voltage comparator;
If the voltage of described first voltage signal is higher than the voltage of described second voltage signal, described first voltage comparator, during the first voltage threshold stored lower than described first voltage comparator for the voltage that receives at the negative input end of described first voltage comparator, export the information that environment to be measured is in leakage state; And when the second voltage threshold that the voltage that the negative input end of described first voltage comparator receives stores higher than described first voltage comparator, export the information that environment to be measured is in non-leakage state; Described first voltage threshold is less than described second voltage threshold;
If the voltage of described first voltage signal is lower than the voltage of described second voltage signal, described first voltage comparator, during the tertiary voltage threshold value stored higher than described first voltage comparator for the voltage that receives at the negative input end of described first voltage comparator, export the information that environment to be measured is in leakage state; And when the 4th voltage threshold that the voltage that the negative input end of described first voltage comparator receives stores lower than described first voltage comparator, export the information that environment to be measured is in non-leakage state; Described tertiary voltage threshold value is greater than described 4th voltage threshold.
3. leakage acquisition sensor as claimed in claim 2, it is characterized in that, described detection module specifically comprises the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance and the second voltage comparator;
One end of described 5th resistance receives tertiary voltage signal, the other end of described 5th resistance connects an exploring electrode in described detector and the one end with described 6th resistance respectively, another exploring electrode in described detector receives the 4th voltage signal, and the other end of described 6th resistance connects the positive input terminal of described second voltage comparator;
Described 7th resistance and described 8th resistant series are between power supply and the positive input terminal of described second voltage comparator, and one end that described 7th resistance is connected with described 8th resistance is connected the output terminal of described second voltage comparator; The negative input end of described second voltage comparator receives reference voltage;
If the voltage of described tertiary voltage signal is higher than the voltage of described 4th voltage signal, described second voltage comparator, during the 5th voltage threshold stored lower than described second voltage comparator for the voltage that receives at the positive input terminal of described second voltage comparator, export the information that environment to be measured is in leakage state; And when the 6th voltage threshold that the voltage that the positive input terminal of described second voltage comparator receives stores higher than described second voltage comparator, export the information that environment to be measured is in non-leakage state; Described 5th voltage threshold is less than described 6th voltage threshold;
If the voltage of described tertiary voltage signal is lower than the voltage of described 4th voltage signal, described second voltage comparator, during the 7th voltage threshold stored higher than described second voltage comparator for the voltage that receives at the positive input terminal of described second voltage comparator, export the information that environment to be measured is in leakage state; And when the 8th voltage threshold that the voltage that the positive input terminal of described second voltage comparator receives stores lower than described second voltage comparator, export the information that environment to be measured is in non-leakage state; Described 7th voltage threshold is greater than described 8th voltage threshold.
4. the leakage acquisition sensor as described in as arbitrary in claim 1-3, it is characterized in that, described leakage acquisition sensor also comprises radio-frequency module;
Described radio-frequency module, for when the status information of the environment to be measured received from described detection module changes, stop dormancy and send the status information of environment to be measured after changing according to the time interval of presetting to the control system of described leakage acquisition sensor; And after the confirmation receiving described control system, stop the status information sending the environment to be measured after changing to described control system, and enter dormancy.
5. leakage acquisition sensor as claimed in claim 4, is characterized in that, described radio-frequency module also for:
After successful with described control system networking, the type information of the address information of described leakage acquisition sensor and described leakage acquisition sensor is sent to described control system.
6. leakage acquisition sensor as claimed in claim 4, it is characterized in that, described radio-frequency module is communicated with described control system by a network channel in the multiple different network channel in consolidated network type.
7. leakage acquisition sensor as claimed in claim 4, is characterized in that, described radio-frequency module also for:
When not entering dormancy, receiving the signal strength test order of described control system transmission, send test massage to described control system.
8. a leakage detection system, is characterized in that, comprise as arbitrary in claim 1 ~ 7 as described in leakage acquisition sensor.
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| CN106876811A (en) * | 2017-04-12 | 2017-06-20 | 华霆（合肥）动力技术有限公司 | Visit leakage device and battery modules visit leakage system |
| CN106876811B (en) * | 2017-04-12 | 2024-02-09 | 华霆（合肥）动力技术有限公司 | Leakage detecting device and battery module leakage detecting system |
| CN107039693A (en) * | 2017-06-08 | 2017-08-11 | 合肥联信电源有限公司 | A kind of battery leakage detection system and method |
| CN107314867A (en) * | 2017-06-30 | 2017-11-03 | 徐校竹 | A kind of leakage inspector |
| WO2021035890A1 (en) * | 2019-08-23 | 2021-03-04 | 施镇乾 | Probe electrode installation structure, water detector, and manufacturing method for same |
| CN112697304A (en) * | 2019-10-23 | 2021-04-23 | 宁波方太厨具有限公司 | Food temperature probe |
| CN112284632A (en) * | 2020-10-15 | 2021-01-29 | 曙光信息产业(北京)有限公司 | Weeping detection membranes and systems |
| CN112284632B (en) * | 2020-10-15 | 2023-10-20 | 曙光信息产业(北京)有限公司 | Leak detection film and system |
| CN116593759A (en) * | 2023-07-05 | 2023-08-15 | 南开大学 | On-line monitoring device for power-on and water-immersed state of electric equipment |
| CN116593759B (en) * | 2023-07-05 | 2023-09-22 | 南开大学 | On-line monitoring device for power-on and water-immersed state of electric equipment |
| CN116913058A (en) * | 2023-09-14 | 2023-10-20 | 济南泰格电子技术有限公司 | File protection calling equipment for water leakage detection and rat repelling |
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