CN212646950U - Meter reading collector with fault alarm function - Google Patents
Meter reading collector with fault alarm function Download PDFInfo
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- CN212646950U CN212646950U CN202021221162.5U CN202021221162U CN212646950U CN 212646950 U CN212646950 U CN 212646950U CN 202021221162 U CN202021221162 U CN 202021221162U CN 212646950 U CN212646950 U CN 212646950U
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Abstract
The utility model relates to a collector of checking meter with malfunction alerting function relates to the technical field of the instrument of checking meter, which comprises a housin, locate on the casing with near detection ammeter ambient temperature and convert the temperature sensor into the temperature detect signal, be coupled in the first comparing device of temperature sensor with the received temperature detect signal and output first comparison signal, be coupled in the first reference device of first comparison device for first reference signal is provided for first comparing device, be coupled in the first controlling means of first comparison device with the received first comparison signal and output first control signal and be coupled in the alarm device of first controlling means with the received first control signal and respond to first control signal. The utility model discloses have and to report an emergency and ask for help or increased vigilance the contact failure or the short circuit of ammeter wiring department, improved the effect of the security in the ammeter use.
Description
Technical Field
The utility model belongs to the technical field of the technique of the instrument of checking meter and specifically relates to a collector of checking meter with malfunction alerting function is related to.
Background
The collector is an indispensable important device as a communication transfer station of a metering meter and a concentrator in a remote meter reading system, and the meter reading collector is widely applied to reading of meters such as an electric meter, a water meter, a gas meter and the like.
When the electric meter is used, a large amount of heat is easily generated due to faults such as poor line contact or short circuit, the service life of the electric meter is influenced even the electric meter is damaged if the faults cannot be processed in time, serious people may cause fire, certain potential safety hazards exist, and the electric meter has an improved space.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a collector of checking meter with malfunction alerting function, can report an emergency and ask for help or increased vigilance the contact failure or the short circuit of ammeter wiring department, improved the security in the ammeter use.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a meter reading collector with a fault alarm function comprises a shell, a temperature sensor, a first comparison device, a first reference device, a first control device and an alarm device, wherein the temperature sensor is arranged on the shell and used for detecting the ambient temperature near an ammeter and converting the ambient temperature into a temperature detection signal, the first comparison device is coupled to the temperature sensor and used for receiving the temperature detection signal and outputting a first comparison signal, the first reference device is coupled to the first comparison device and used for providing a first reference signal for the first comparison device, the first control device is coupled to the first comparison device and used for receiving the first comparison signal and outputting a first control signal, and the alarm device is coupled to the first control device and used for receiving the first control signal and responding to the first control signal.
By adopting the technical scheme, the temperature detection signal is greater than the first reference signal, which indicates that the wiring part of the ammeter is likely to generate heat due to poor contact or short circuit, at the moment, the first comparison device outputs high level, the first control device controls the alarm device to alarm so as to alarm the user, remind the user to overhaul the ammeter in time, and improve the safety of the ammeter in the use process.
The present invention may be further configured in a preferred embodiment as: the temperature sensor is coupled with the temperature sensor to receive the temperature detection signal and output an amplified signal;
the first comparing device is coupled to the amplifying device to receive the amplified signal and output a first comparing signal.
By adopting the technical scheme, the amplifying device amplifies the temperature detection signal, so that the sensitivity of temperature detection is improved.
The present invention may be further configured in a preferred embodiment as: the human body detection device is arranged on the shell and used for detecting a human body and converting the human body into a human body detection signal, the second control device is coupled to the human body detection device to receive the human body detection signal and output a second control signal, and the lighting device is coupled to the second control device to receive the second control signal and respond to the second control signal.
By adopting the technical scheme, when a user or a meter reading worker approaches the ammeter, the human body detection device outputs a high level, and the second control device controls the lighting device to turn on lighting so as to facilitate the user or the meter reading worker to overhaul the ammeter.
The present invention may be further configured in a preferred embodiment as: the human body detection device is coupled with the first comparison device and the human body detection device to receive the first comparison signal and the human body detection signal and output a logic control signal;
the second control device is coupled to the AND logic circuit to receive the logic control signal and output a second control signal.
Through adopting above-mentioned technical scheme, when first comparison device and human detection device all exported the high level, the explanation is that user or the staff of checking meter are overhauing the ammeter, and the illumination of controlling lighting device this moment, convenience of customers or the staff of checking meter overhaul the ammeter.
The present invention may be further configured in a preferred embodiment as: the electric meter further comprises a brightness detection device arranged on the shell and used for detecting the ambient brightness near the electric meter and converting the ambient brightness into a brightness detection signal, a second comparison device coupled to the brightness detection device to receive the brightness detection signal and output a second comparison signal, and a second reference device coupled to the second comparison device to provide a second reference signal for the second comparison device;
the AND gate logic circuit is coupled to the first comparing device, the second comparing device and the human body detecting device to receive the first comparing signal, the brightness detecting signal and the human body detecting signal and output a logic control signal.
By adopting the technical scheme, the brightness detection signal is smaller than the second reference signal, which indicates that the brightness near the ammeter is enough, and a user or a meter reading worker does not need to turn on the lighting device when maintaining the ammeter, so that the design is more reasonable, and the electric meter is more energy-saving and environment-friendly.
The present invention may be further configured in a preferred embodiment as: the human body detection device is coupled with the human body detection device and used for filtering interference signals.
By adopting the technical scheme, the filtering device can filter the interference signals in the human body detection signals, so that the human body detection signals are not easy to distort when being transmitted, and the accuracy of the human body detection signals when being transmitted is improved.
The present invention may be further configured in a preferred embodiment as: the human body detection device is a pyroelectric infrared sensor.
The present invention may be further configured in a preferred embodiment as: the alarm device is a sound alarm.
Through adopting above-mentioned technical scheme, sound is difficult for being sheltered from, and the spread range is wide, can in time inform near the user or the staff of checking meter of meter reading collector to remind user or the staff of checking meter to in time maintain the ammeter.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the alarm can be given to poor contact or short circuit at the wiring position of the electric meter, so that the safety of the electric meter in the use process is improved;
2. the brightness detection signal is smaller than the second reference signal, which indicates that the brightness near the ammeter is enough, and a user or a meter reading worker does not need to turn on the lighting device when maintaining the ammeter, so that the design is more reasonable, and the energy conservation and the environmental protection are realized.
Drawings
Fig. 1 is a circuit connection diagram of a temperature sensor, an amplifying device, a first comparing device, a first reference device, a first control device and an alarm device.
Fig. 2 is a circuit connection diagram of the human body detection device, the filter device, the brightness detection device, the second comparison device, the second reference device, the and gate logic circuit, the second control device and the illumination device.
In the figure, 10, a temperature sensor; 20. a first comparing means; 30. a first reference device; 40. a first control device; 50. an alarm device; 60. an amplifying device; 70. a human body detection device; 80. a second control device; 90. an illumination device; 100. an AND gate logic circuit; 110. a brightness detection device; 120. a filtering device; 130. a second comparing means; 140. a second reference device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses a meter reading collector with a fault alarm function, which comprises a shell, a temperature sensor 10, an amplifying device 60, a first comparing device 20, a first reference device 30, a first control device 40 and an alarm device 50; the temperature sensor 10 is arranged on the shell to detect the ambient temperature near the ammeter and convert the ambient temperature into a temperature detection signal, an exit hole is formed in the shell, and a probe of the temperature sensor 10 extends out of the shell through the exit hole; the amplifying device 60 is coupled to the temperature sensor 10 for receiving the temperature detection signal and outputting an amplified signal, the first comparing device 20 is coupled to the amplifying device 60 for receiving the amplified signal and outputting a first comparing signal, the first reference device 30 is coupled to the first comparing device 20 for providing the first reference signal for the first comparing device 20, the first control device 40 is coupled to the first comparing device 20 for receiving the first comparing signal and outputting a first control signal, and the alarm device 50 is coupled to the first control device 40 for receiving the first control signal and responding to the first control signal.
The temperature sensor 10 is model LM35DZ LM 35.
The amplifying device 60 includes an amplifier IC1, a first resistor R1 and a second resistor R2. Amplifier IC1 is model LM 324; the first resistor R1 has a resistance of 110K Ω, and the second resistor R2 has a resistance of 10K Ω.
The same-direction input end of the amplifier IC1 is connected to the output end of the temperature sensor 10, the reverse-direction input end of the amplifier IC1 is connected to one end of the first resistor R1 and one end of the second resistor R2, the other end of the second resistor R2 is connected to ground GND, and the other end of the first resistor R1 is connected to the output end of the amplifier IC.
The first comparison device 20 is a first comparator N1, and the model of the first comparator N1 is LM 393; the first reference device 30 comprises a third resistor R3 and a first potentiometer RW1, the third resistor R3 having a resistance of 80K Ω, the first potentiometer RW1 having a model number of 3296W and a nominal resistance in the range 10 Ω -2M Ω.
The non-inverting input terminal of the first comparator N1 is connected to the output terminal of the amplifier IC1, the inverting input terminal of the first comparator N1 is connected to one end of the third resistor R3 and one end of the first potentiometer RW1, the other end of the first potentiometer RW1 is connected to the power supply VCC, and the other end of the third resistor R3 is connected to the ground GND.
When the amplified signal is smaller than the first reference signal, the first comparator N1 outputs a first comparison signal of a low level; when the amplified signal is greater than the first reference signal, the first comparator N1 outputs a first comparison signal of a high level.
Referring to fig. 1, the first control device 40 includes a first transistor Q1, a fourth resistor R4, a fifth resistor R5, a first electromagnetic relay KM1, and a first capacitor C1; the first triode Q1 is a PNP type triode with the model number of 2SC4019, wherein the conduction threshold value of the first triode is 0.7V; the fourth resistor R4 has a resistance of 3K Ω, the fifth resistor R5 has a resistance of 1.5K Ω, the first electromagnetic relay KM1 is of hh52p and normally open type, and the first capacitor C1 has a capacitance of 200 pF.
The base of the first triode Q1 is respectively connected with one end of a fourth resistor R4, one end of a fifth resistor R5 and one end of a first capacitor C1, the other end of the fourth resistor R4 is connected with the other end of the first capacitor C1 and the output end of a first comparator N1, and the other end of the fifth resistor R5 is respectively connected with the emitter of the first triode Q1 and the ground GND; one end of the first electromagnetic relay KM1 is connected with the collector of the first triode Q1, and the other end of the first electromagnetic relay KM1 is connected with a power supply VCC.
Referring to fig. 1, the alarm device 50 includes a sound generator SP and a sixth resistor R6; the sounder SP is of the type NMD12065YB, and the resistance value of the resistor R6 is 2K omega; one end of the sixth resistor R6 is connected with the ground GND, the other end of the sixth resistor R6 is connected with one end of the sounder SP, the other end of the sounder SP is connected with one end of a normally open contact KM1-1 of the first electromagnetic relay KM1, and the other end of the normally open contact KM1-1 of the first electromagnetic relay KM1 is connected with the power supply VCC.
When the temperature detection signal is greater than the first reference signal, the first comparison device 20 outputs a high level, the first triode Q1 is conducted, the normally open contact KM1-1 of the first electromagnetic relay KM1 is closed, and the sounder SP is electrified to sound and give an alarm; on the contrary, the first comparing device 20 outputs a low level, the first triode Q1 is not conducted, the normally open contact KM1-1 of the first electromagnetic relay KM1 is kept open, and the sounder SP is not powered.
Referring to fig. 1 and 2, the lighting device further includes a human body detection device 70, a filtering device 120, a brightness detection device 110, a second comparison device 130, a second reference signal, an and logic circuit 100, a second control device 80, and a lighting device 90; the human body detecting device 70 is disposed on the housing and configured to detect a human body and convert the detected signal into a human body detecting signal, the filtering device 120 is coupled to the human body detecting device 70 to filter an interference signal, the brightness detecting device 110 is disposed on the housing and configured to detect the brightness of the environment near the electricity meter and convert the detected signal into a brightness detecting signal, the second comparing device 130 is coupled to the brightness detecting device 110 to receive the brightness detecting signal and output a second comparing signal, the second reference device 140 is coupled to the second comparing device 130 to provide a second reference signal for the second reference device 140, the and logic circuit 100 is coupled to the first comparing device 20, the second comparing device 130 and the filtering device 120 to receive the first comparing signal, the second comparing signal and the human body detecting signal and output a logic control signal, the second control device 80 is coupled to the and logic circuit 100 to receive the logic control signal and output the second control signal, the illumination device 90 is coupled to the second control device 80 to receive the second control signal and respond to the second control signal.
The human body detection device 70 is a pyroelectric infrared sensor N1 with the model number LN 074B; the filter device 120 is an RC filter circuit, the filter device 120 is used for removing an interference signal in the human body detection signal, the filter device 120 includes a second capacitor C2 and a seventh resistor R7, a capacitance value of the second capacitor C2 is 0.1 μ F, and a resistance value of the seventh resistor R7 is 10K Ω.
The D end of the pyroelectric infrared sensor N1 is connected with a power supply VCC, the G end is connected with the ground GND, one end of a second capacitor C2 is connected with the S end of the pyroelectric infrared sensor N1, the other end of the second capacitor C2 is connected with the ground GND, and one end of a seventh resistor R7 is connected with the S end of the pyroelectric infrared sensor N1.
Referring to fig. 1 and 2, the brightness detecting apparatus 110 includes a ninth resistor R9 and a photo resistor RG, the model of the photo resistor RG is 5506, and the resistance of the ninth resistor R9 is 10K Ω; the second reference device 140 includes an eighth resistor R8 and a second potentiometer RW2, the eighth resistor R8 having a resistance of 100K Ω, the second potentiometer RW2 having a model number of 3296W and a nominal resistance in the range of 10 Ω -2M Ω.
One end of the photoresistor RG is connected with the reverse input end of the second comparator N2, the other end of the photoresistor RG is connected with one end of a ninth resistor R9, and the other end of the ninth resistor R9 is connected with a power supply VCC; one end of the second potentiometer RW2 is connected to one end of the eighth resistor R8 and the unidirectional input end of the second comparator N2, the other end of the eighth resistor R8 is connected to the ground GND, and the other end of the second potentiometer RW2 is connected to the power source VCC.
The second control device 80 comprises a second triode Q2, a tenth resistor R10, an eleventh resistor R11, a second electromagnetic relay KM2 and a third capacitor C3; the second triode Q2 is a PNP type triode with the model number of 2SC4019, wherein the conduction threshold value of the second triode is 0.7V; the tenth resistor R4 has a resistance of 3K Ω, the eleventh resistor R5 has a resistance of 1.5K Ω, the second electromagnetic relay KM2 is of hh52p and normally open type, and the third capacitor C3 has a capacitance of 160 pF.
The output end of the first comparator N1, the other end of the seventh resistor R7 and the output end of the second comparator N2 are all connected with the input end of the and logic circuit 100, the base of the second triode Q2 is respectively connected with one end of the tenth resistor R10, one end of the eleventh resistor R11 and one end of the third capacitor C3, the other end of the tenth resistor R10 is connected with the other end of the third capacitor C3 and the output end of the and logic circuit 100, and the other end of the eleventh resistor R11 is respectively connected with the emitter of the second triode Q2 and the ground GND; one end of the second electromagnetic relay KM2 is connected with the collector of the second triode Q2, and the other end of the second electromagnetic relay KM2 is connected with a power supply VCC.
Referring to fig. 2, the lighting device 90 is a light emitting diode D1, model 3030; the anode of the light-emitting diode D1 is connected with one end of a normally open contact KM2-1 of a second electromagnetic relay KM2, the cathode of the light-emitting diode D1 is connected with the ground GND, and the other end of the normally open contact KM2-1 of the second electromagnetic relay KM2 is connected with a power supply VCC.
When the temperature detection signal is greater than the first reference signal, the human body detection device 70 detects a human body, and meanwhile, the brightness detection signal is less than the second reference signal, the first comparison device 20 outputs a high level, the second comparison device 130 outputs a high level, the and gate logic circuit 100 outputs a high level, the second triode Q2 is conducted, the normally open contact KM2-1 of the second electromagnetic relay KM2 is closed, and the light-emitting diode D1 is powered on and turned on; on the contrary, the and logic circuit 100 outputs a low level, the second triode Q2 is not conducted, the normally open contact KM2-1 of the second electromagnetic relay KM2 is kept open, and the light emitting diode D1 is kept closed.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a collector of checking meter with malfunction alerting function, includes the casing, its characterized in that: the temperature control device further comprises a temperature sensor (10) arranged on the shell and used for detecting the ambient temperature near the electricity meter and converting the ambient temperature into a temperature detection signal, a first comparison device (20) coupled to the temperature sensor (10) and used for receiving the temperature detection signal and outputting a first comparison signal, a first reference device (30) coupled to the first comparison device (20) and used for providing the first reference signal for the first comparison device (20), a first control device (40) coupled to the first comparison device (20) and used for receiving the first comparison signal and outputting a first control signal, and an alarm device (50) coupled to the first control device (40) and used for receiving the first control signal and responding to the first control signal.
2. The meter reading collector with the fault alarm function according to claim 1, characterized in that: the temperature sensor also comprises an amplifying device (60) which is coupled with the temperature sensor (10) to receive the temperature detection signal and output an amplifying signal;
the first comparing device (20) is coupled to the amplifying device (60) to receive the amplified signal and output a first comparing signal.
3. The meter reading collector with the fault alarm function according to claim 1, characterized in that: the human body detection device (70) is arranged on the shell and used for detecting a human body and converting the human body into a human body detection signal, the second control device (80) is coupled to the human body detection device (70) to receive the human body detection signal and output a second control signal, and the lighting device (90) is coupled to the second control device (80) to receive the second control signal and responds to the second control signal.
4. The meter reading collector with the fault alarm function according to claim 3, characterized in that: the human body detection device also comprises an AND gate logic circuit (100) which is coupled with the first comparison device (20) and the human body detection device (70) to receive the first comparison signal and the human body detection signal and output a logic control signal;
the second control device (80) is coupled to the AND logic circuit (100) to receive the logic control signal and output a second control signal.
5. The meter reading collector with the fault alarm function according to claim 4, characterized in that: the electric meter further comprises a brightness detection device (110) which is arranged on the shell and used for detecting the ambient brightness near the electric meter and converting the ambient brightness into a brightness detection signal, a second comparison device (130) which is coupled to the brightness detection device (110) to receive the brightness detection signal and output a second comparison signal, and a second reference device (140) which is coupled to the second comparison device (130) to provide a second reference signal for the second comparison device (130);
the AND logic circuit (100) is coupled to the first comparing device (20), the second comparing device (130) and the human body detecting device (70) for receiving the first comparing signal, the brightness detecting signal and the human body detecting signal and outputting a logic control signal.
6. The meter reading collector with the fault alarm function according to claim 3, characterized in that: the human body detection device also comprises a filtering device (120) which is coupled with the human body detection device (70) and is used for filtering the interference signal.
7. The meter reading collector with the fault alarm function according to claim 3, characterized in that: the human body detection device (70) is a pyroelectric infrared sensor.
8. The meter reading collector with the fault alarm function according to claim 1, characterized in that: the alarm device (50) is an audible alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021221162.5U CN212646950U (en) | 2020-06-28 | 2020-06-28 | Meter reading collector with fault alarm function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021221162.5U CN212646950U (en) | 2020-06-28 | 2020-06-28 | Meter reading collector with fault alarm function |
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| Publication Number | Publication Date |
|---|---|
| CN212646950U true CN212646950U (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021221162.5U Active CN212646950U (en) | 2020-06-28 | 2020-06-28 | Meter reading collector with fault alarm function |
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|---|---|
| CN (1) | CN212646950U (en) |
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- 2020-06-28 CN CN202021221162.5U patent/CN212646950U/en active Active
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