CN103426271A - Electrical fire monitor unit with pulse metering and implementation method thereof - Google Patents

Electrical fire monitor unit with pulse metering and implementation method thereof Download PDF

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Publication number
CN103426271A
CN103426271A CN2013103979368A CN201310397936A CN103426271A CN 103426271 A CN103426271 A CN 103426271A CN 2013103979368 A CN2013103979368 A CN 2013103979368A CN 201310397936 A CN201310397936 A CN 201310397936A CN 103426271 A CN103426271 A CN 103426271A
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power
electrical fire
fire monitor
unit
consumption
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CN103426271B (en
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刘伟
余龙山
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SHANGHAI HUASU ELECTRIC CO Ltd
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SHANGHAI HUASU ELECTRIC CO Ltd
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Abstract

The invention provides an electrical fire monitor unit with pulse metering and an implementation method thereof. The electrical fire monitor unit comprises an aftercurrent sampling unit, a temperature sampling unit, a three-phase voltage sampling unit, a three-phase current sampling unit, a four-way sampled signal filtering unit, a three-way impulse input unit, a three-way impulse output unit, a processor, a displayer, a storer, an indicator light, a push-button unit, an RS485 serial communication unit, an external clock unit and a power source unit. The electrical fire monitor unit with pulse metering and the implementation method thereof not only can conduct data acquisition on electrical fire relevant parameters but also can measure various energy parameters of a pulse metering mode, the function of the electrical fire monitor unit is enriched, the structure of the device is simplified, and therefore the multi-aspect demands of a user can be met.

Description

Electrical fire monitor and its implementation of a kind of tape pulse metering
Technical field
The present invention relates to the electric fire disaster monitoring field, relate in particular to electrical fire monitor and its implementation of a kind of tape pulse metering.
Background technology
Along with the understanding that society takes precautions against electrical fire is progressively deepened, and the wideling popularize of the support of rules and administration of the prevention and control department, the use of electrical fire monitor is more and more.The most of function ratio of electrical fire monitor of the prior art is more single, as the residual current of the detected electric wiring of special measurement, the special cable temperature of measuring detected electric wiring, cause the electrical fire monitor integrated level not high, be difficult to enlarge its application surface.Preferably, some electrical fire monitors can be measured 1 road residual current and 4 road temperature monitorings, but for more at place's point for measuring temperature, or the occasion that has special thermometric and detection of electrical leakage combination to require, it is helpless that this watch-dog also seems, is difficult to meet all demands.And, in some occasion, both need to measure electric parameter, needed again to take into account the function of electric fire disaster monitoring, in prior art, that single electrical fire monitor and electric power monitoring instrument, electric parameter metering instrument all are packaged together, so final small product size is very large, cause corresponding switch cubicle also will increase, be unfavorable for like this transformation and upgrade of old system, because final product is installed in inside switch cabinet, be not easy to the staff and check duty and operated simultaneously.
Therefore, need a kind of multifunctional electric fire monitor of satisfied many-sided demand, take into account electric fire disaster monitoring and electric parameter metering function.In addition, except electric energy, other kind energy consumption also needs to gather, and as water, gas etc., is all the easy power consumption source often had.The information transmission mode of current most ammeter, water meter and gas meter is pulse output, and is not suitable for the direct collection demand of electrical fire monitor, therefore is difficult to the consumption information of non electrical quantity is incorporated to electrical fire monitor.Existing Pulse sampling device is the product for old-fashioned mechanical electric meter exploitation, completes the numeral conversion of electrical energy pulse to the electric degree number, but the water yield, tolerance etc. can't be changed into to corresponding digital equivalent.
Summary of the invention
The problem that the present invention solves is in existing electrical fire monitor, can't meet the demand of user's each side due to function singleness, although the function of perhaps compatible electrical fire parameter acquisition and consumption information collection is difficult to administer and maintain but system architecture is complicated, thereby causes the awkward problem of user.
To achieve these goals, the invention provides a kind of electrical fire monitor of tape pulse metering, described electrical fire monitor comprises residual current sampling unit, temperature sampling unit, three-phase voltage sampling unit, three-phase current sampling unit, 4 tunnel sampled signal filter units, 3 tunnel pulse input blocks, 3 tunnel pulse output units, processor, display, storer, pilot lamp, push-button unit, RS485 serial communication unit, external clock unit and power supply unit, described residual current sampling unit is for gathering the residual current of detected electric wiring, described temperature sampling unit is for gathering the cable temperature of detected electric wiring, described three-phase voltage sampling unit is for gathering the three-phase voltage of detected electric wiring, described three-phase current sampling unit is for gathering the three-phase current of detected electric wiring, described residual current sampling unit, described temperature sampling unit, described three-phase voltage sampling unit is connected respectively 4 tunnel sampled signal filter unit Zhong De mono-tunnel sampled signal filter units with described three-phase current sampling unit, described processor connects described 4 tunnel sampled signal filter units to receive the residual current after signal filtering, cable temperature, three-phase voltage and three-phase current, and the active power of the three-phase voltage based on after described signal filtering and the detected electric wiring of three-phase current calculating, reactive power, applied power and power factor, described 3 tunnel pulse input blocks connect respectively outside ammeter, outside water meter and outside gas meter power consumption, water consumption and the gas consumption with received pulse metering respectively, described processor connects described 3 tunnel pulse input blocks and the power consumption of pulse measurement, water consumption and gas consumption is converted to power consumption, water consumption and the gas consumption of digital metering, and described 3 tunnel pulse output units connect described processor to forward power consumption, water consumption and the gas consumption of pulse measurement, described processor connects described display to show the active power of described detected electric wiring, reactive power, applied power and power factor and show described signal filtering after residual current, cable temperature, three-phase voltage and three-phase current and the power consumption that shows described digital metering, water consumption and gas consumption, described processor connects described storer to store the active power of described detected electric wiring, reactive power, applied power and power factor and store described signal filtering after residual current, cable temperature, three-phase voltage and three-phase current and the power consumption of storing described digital metering, water consumption and gas consumption, described processor connects described RS485 serial communication unit and sends the active power of described detected electric wiring with serial, reactive power, applied power and power factor parallel series send the residual current after described signal filtering, cable temperature, three-phase voltage and three-phase current, described power supply unit is used to the power supply of the equipment except power supply unit in described electrical fire monitor, described external clock unit is used to described processor to provide described processor work required clock signal, described pilot lamp is for showing the duty of described electrical fire monitor, and described push-button unit is for receiving user's input to control the work of described processor.
Alternatively, described electrical fire monitor also comprises network interface unit, connect described processor, for network, send residual current, cable temperature, three-phase voltage and the three-phase current after active power, reactive power, applied power and the power factor of described detected electric wiring network send described signal filtering.
Alternatively, described push-button unit is keyboard, and described display is liquid crystal display or light-emitting diode display.
Alternatively, described storer is a kind of in random access memory ram, flash memory Flash Memory.
To achieve these goals, the present invention also provides a kind of implementation method of electrical fire monitor of tape pulse metering, it is characterized in that, comprise the following steps: step 1: the residual current sampling unit in described electrical fire monitor, temperature sampling unit, three-phase voltage sampling unit and three-phase current sampling unit gather respectively residual current, cable temperature, three-phase voltage and the three-phase current of detected electric wiring; Step 2: 4 tunnel sampled signal filter units in described electrical fire monitor are connected with the residual current to described detected electric wiring, cable temperature, three-phase voltage and three-phase current and carry out respectively signal filtering with described three-phase current sampling unit with described residual current sampling unit, described temperature sampling unit, described three-phase voltage sampling unit respectively; Step 3: 3 tunnel pulse input blocks in described electrical fire monitor connect respectively outside ammeter, outside water meter and outside gas meter power consumption, water consumption and the gas consumption with received pulse metering respectively; Step 4: the processor in described electrical fire monitor connects described 4 tunnel sampled signal filter units to receive residual current, cable temperature, three-phase voltage and the three-phase current after signal filtering, and the three-phase voltage based on after described signal filtering and three-phase current calculate active power, reactive power, applied power and the power factor of detected electric wiring; Step 5: described processor connects described 3 tunnel pulse input blocks and the power consumption of pulse measurement, water consumption and gas consumption is converted to power consumption, water consumption and the gas consumption of digital metering, and 3 tunnel pulse output units in described electrical fire monitor connect described processor to forward power consumption, water consumption and the gas consumption of pulse measurement; Step 6: described processor connects display in described electrical fire monitor with the active power, reactive power, applied power and the power factor that show described detected electric wiring and residual current, cable temperature, three-phase voltage and three-phase current after showing described signal filtering and power consumption, water consumption and the gas consumption that shows described digital metering; Step 7: described processor connects storer in described electrical fire monitor with active power, reactive power, applied power and the power factor of storing described detected electric wiring and residual current, cable temperature, three-phase voltage and three-phase current after storing described signal filtering and power consumption, water consumption and the gas consumption of storing described digital metering; Step 8: described processor connects residual current, cable temperature, three-phase voltage and the three-phase current after active power, reactive power, applied power and power factor parallel series that RS485 serial communication unit in described electrical fire monitor sends described detected electric wiring with serial send described signal filtering; Wherein, described electrical fire monitor also comprises power supply unit, be used to the power supply of the equipment except power supply unit in described electrical fire monitor, described electrical fire monitor also comprises the external clock unit, be used to described processor to provide described processor work required clock signal, described electrical fire monitor also comprises pilot lamp, for showing the duty of described electrical fire monitor, described electrical fire monitor also comprises push-button unit, for the input that receives the user to control the work of described processor.
Alternatively, also comprise step 9 after step 8: described processor connects network interface unit in described electrical fire monitor and sends residual current, cable temperature, three-phase voltage and the three-phase current after active power, reactive power, applied power and the power factor of described detected electric wiring network send described signal filtering with network.
Alternatively, described push-button unit is keyboard, and described display is liquid crystal display or light-emitting diode display.
Alternatively, described storer is a kind of in random access memory ram, flash memory Flash Memory.
The present invention is owing to having adopted technique scheme, thereby have the following advantages: electrical fire monitor and its implementation of tape pulse metering of the present invention, the electrical fire monitor that in the prior art, drainage pattern is single and its implementation have been transformed, make electrical fire monitor not only can gather the residual current of detected electric wiring, cable temperature, three-phase voltage and three-phase current, further calculate the active power of detected electric wiring, reactive power, applied power and power factor, thereby carry out electric fire disaster warning, and the compatible energy acquisition function of various pulse measurement forms, transfer pulse measurement to the numerical value metering, be convenient to understand in time the power consumption that the user consumes, water consumption and gas consumption, the present invention has deleted the device structure redundancy, user's various collection demands have been catered to.
The accompanying drawing explanation
The system architecture schematic diagram of the electrical fire monitor that Fig. 1 is a kind of tape pulse metering of the present invention;
The method flow diagram of the electrical fire monitor implementation method that Fig. 2 is a kind of tape pulse metering of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.At first, please refer to Fig. 1, the system architecture schematic diagram of the electrical fire monitor that Fig. 1 is a kind of tape pulse metering of the present invention, the electrical fire monitor of described tape pulse metering comprises residual current sampling unit 1, temperature sampling unit 2, three-phase voltage sampling unit 3, three-phase current sampling unit 4,4 tunnel sampled signal filter unit 5,3 tunnel pulse input block 6,3 tunnel pulse output units 12, processor 7, display 8, storer 9, pilot lamp 16, push-button unit 15, RS485 serial communication unit 10, external clock unit 14 and power supply unit 13, described residual current sampling unit 1 is for gathering the residual current of detected electric wiring, described temperature sampling unit 2 is for gathering the cable temperature of detected electric wiring, described three-phase voltage sampling unit 3 is for gathering the three-phase voltage of detected electric wiring, described three-phase current sampling unit 4 is for gathering the three-phase current of detected electric wiring, described residual current sampling unit 1, described temperature sampling unit 2, described three-phase voltage sampling unit 3 is connected respectively 4 tunnel sampled signal filter unit 5 Zhong De mono-tunnel sampled signal filter units with described three-phase current sampling unit 4, described processor 7 connects described 4 tunnel sampled signal filter units 5 to receive the residual current after signal filtering, cable temperature, three-phase voltage and three-phase current, and the active power of the three-phase voltage based on after described signal filtering and the detected electric wiring of three-phase current calculating, reactive power, applied power and power factor, described 3 tunnel pulse input blocks 6 connect respectively outside ammeter, outside water meter and outside gas meter power consumption, water consumption and the gas consumption with received pulse metering respectively, described processor 7 connects described 3 tunnel pulse input blocks 6 and the power consumption of pulse measurement, water consumption and gas consumption is converted to power consumption, water consumption and the gas consumption of digital metering, and described 3 tunnel pulse output units 12 connect described processor 7 to forward power consumption, water consumption and the gas consumption of pulse measurement, described processor 7 connects described display 8 to show the active power of described detected electric wiring, reactive power, applied power and power factor and show described signal filtering after residual current, cable temperature, three-phase voltage and three-phase current and the power consumption that shows described digital metering, water consumption and gas consumption, described processor 7 connects described storer 9 to store the active power of described detected electric wiring, reactive power, applied power and power factor and store described signal filtering after residual current, cable temperature, three-phase voltage and three-phase current and the power consumption of storing described digital metering, water consumption and gas consumption, described processor 7 connects described RS485 serial communication unit 10 and sends the active power of described detected electric wiring with serial, reactive power, applied power and power factor parallel series send the residual current after described signal filtering, cable temperature, three-phase voltage and three-phase current, described power supply unit 13 is used to the power supply of the equipment except power supply unit 13 in described electrical fire monitor, described external clock unit 14 is used to described processor 7 to provide described processor 7 work required clock signal, described pilot lamp 16 is for showing the duty of described electrical fire monitor, described push-button unit 15 for the input that receives the user to control the work of described processor 7.Described electrical fire monitor also comprises network interface unit 11, connect described processor 7, for network, send residual current, cable temperature, three-phase voltage and the three-phase current after active power, reactive power, applied power and the power factor of described detected electric wiring network send described signal filtering.Wherein, described network interface unit 11 adopts and carries out the network data transmission based on the TCPIP agreement.
In addition, described RS485 serial communication unit 10 is for forming the half-duplex operation network, in wiring, generally that two-wire system (had the four-wire system connection in the past, can only realize point-to-point communication mode, now seldom adopt), adopt the Shielded Twisted Pair transmission more, this mode of connection is that the bus type topological structure can articulate at most 32 nodes on same bus.In the RS485 communication network, general employing is the master-slave communication mode, i.e. a plurality of slaves of main frame band.In a lot of situations, while connecting the RS-485 communication link, just use simply a pair of twisted-pair feeder that " A " of each interface, " B " end are coupled together.The RS485 interface connector adopts the 9 core plug seats of DB-9, with intelligent terminal RS485 interface, adopts the DB-9(hole), the keyboard interface RS485 be connected with keyboard adopts the DB-9(pin).
Wherein, described push-button unit 15 is keyboard, and described display 8 is liquid crystal display or light-emitting diode display.Wherein, the excellent specific property of liquid crystal display device has determined his status in the kinds of displays part, and liquid crystal, as a kind of special functional material, has using value extremely widely.Only have liquid crystal display in more than 20 years just to change the clock and watch timing industry of centuries, everybody has been indispensable for electronic calculator, and intelligent instrumentation has been used liquid crystal display, it can be become portable.The universal design to embedded display system of high-performance embedded portable equipment has proposed new requirement: high-performance, low-power consumption, volume is little, portable and can be operated under various photoenvironments, the display system exploitation that embedded display system is this class portable equipment provides a solution, not only met the needed high-performance of high-end embedded device, and can maintain low-power consumption under the high brightness display condition, be applicable in high-grade PDA, portable media player, handheld navigation instrument, portable medical treatment and testing apparatus and other mobile terminals.
Wherein, described storer 9 is a kind of in random access memory ram, flash memory Flash Memory.
Then, please refer to Fig. 2, the method flow diagram of the electrical fire monitor implementation method that Fig. 2 is a kind of tape pulse metering of the present invention.What the arrow in Fig. 2 showed is the direction of the progress of work, and as can be seen from Figure 2, the electrical fire monitor implementation method of described tape pulse metering comprises the following steps:
Step 201: the residual current sampling unit in described electrical fire monitor, temperature sampling unit, three-phase voltage sampling unit and three-phase current sampling unit gather respectively residual current, cable temperature, three-phase voltage and the three-phase current of detected electric wiring;
Step 202: 4 tunnel sampled signal filter units in described electrical fire monitor are connected with the residual current to described detected electric wiring, cable temperature, three-phase voltage and three-phase current and carry out respectively signal filtering with described three-phase current sampling unit with described residual current sampling unit, described temperature sampling unit, described three-phase voltage sampling unit respectively;
Step 203: 3 tunnel pulse input blocks in described electrical fire monitor connect respectively outside ammeter, outside water meter and outside gas meter power consumption, water consumption and the gas consumption with received pulse metering respectively;
Step 204: the processor in described electrical fire monitor connects described 4 tunnel sampled signal filter units to receive residual current, cable temperature, three-phase voltage and the three-phase current after signal filtering, and the three-phase voltage based on after described signal filtering and three-phase current calculate active power, reactive power, applied power and the power factor of detected electric wiring;
Step 205: described processor connects described 3 tunnel pulse input blocks and the power consumption of pulse measurement, water consumption and gas consumption is converted to power consumption, water consumption and the gas consumption of digital metering, and 3 tunnel pulse output units in described electrical fire monitor connect described processor to forward power consumption, water consumption and the gas consumption of pulse measurement;
Step 206: described processor connects display in described electrical fire monitor with the active power, reactive power, applied power and the power factor that show described detected electric wiring and residual current, cable temperature, three-phase voltage and three-phase current after showing described signal filtering and power consumption, water consumption and the gas consumption that shows described digital metering;
Step 207: described processor connects storer in described electrical fire monitor with active power, reactive power, applied power and the power factor of storing described detected electric wiring and residual current, cable temperature, three-phase voltage and three-phase current after storing described signal filtering and power consumption, water consumption and the gas consumption of storing described digital metering;
Step 208: described processor connects residual current, cable temperature, three-phase voltage and the three-phase current after active power, reactive power, applied power and power factor parallel series that RS485 serial communication unit in described electrical fire monitor sends described detected electric wiring with serial send described signal filtering;
Step 209: described processor connects network interface unit in described electrical fire monitor and sends residual current, cable temperature, three-phase voltage and the three-phase current after active power, reactive power, applied power and the power factor of described detected electric wiring network send described signal filtering with network.
Wherein, described electrical fire monitor also comprises power supply unit, be used to the power supply of the equipment except power supply unit in described electrical fire monitor, described electrical fire monitor also comprises the external clock unit, be used to described processor to provide described processor work required clock signal, described electrical fire monitor also comprises pilot lamp, for showing the duty of described electrical fire monitor, described electrical fire monitor also comprises push-button unit, for the input that receives the user to control the work of described processor.
Wherein, described push-button unit is keyboard, and described display is liquid crystal display or light-emitting diode display.
Wherein, described storer is a kind of in random access memory ram, flash memory Flash Memory.
Although oneself discloses the present invention as above with preferred embodiment, the present invention not is defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, so protection scope of the present invention should be as the criterion with the claim limited range.

Claims (8)

1. the electrical fire monitor of tape pulse metering is characterized in that:
Described electrical fire monitor comprises residual current sampling unit, temperature sampling unit, three-phase voltage sampling unit, three-phase current sampling unit, 4 tunnel sampled signal filter units, 3 tunnel pulse input blocks, 3 tunnel pulse output units, processor, display, storer, pilot lamp, push-button unit, RS485 serial communication unit, external clock unit and power supply unit;
Described residual current sampling unit is for gathering the residual current of detected electric wiring, described temperature sampling unit is for gathering the cable temperature of detected electric wiring, described three-phase voltage sampling unit is for gathering the three-phase voltage of detected electric wiring, described three-phase current sampling unit is for gathering the three-phase current of detected electric wiring, described residual current sampling unit, described temperature sampling unit, described three-phase voltage sampling unit is connected respectively 4 tunnel sampled signal filter unit Zhong De mono-tunnel sampled signal filter units with described three-phase current sampling unit, described processor connects described 4 tunnel sampled signal filter units to receive the residual current after signal filtering, cable temperature, three-phase voltage and three-phase current, and the active power of the three-phase voltage based on after described signal filtering and the detected electric wiring of three-phase current calculating, reactive power, applied power and power factor,
Described 3 tunnel pulse input blocks connect respectively outside ammeter, outside water meter and outside gas meter power consumption, water consumption and the gas consumption with received pulse metering respectively, described processor connects described 3 tunnel pulse input blocks and the power consumption of pulse measurement, water consumption and gas consumption is converted to power consumption, water consumption and the gas consumption of digital metering, and described 3 tunnel pulse output units connect described processor to forward power consumption, water consumption and the gas consumption of pulse measurement;
Described processor connects described display to show the active power of described detected electric wiring, reactive power, applied power and power factor and show described signal filtering after residual current, cable temperature, three-phase voltage and three-phase current and the power consumption that shows described digital metering, water consumption and gas consumption, described processor connects described storer to store the active power of described detected electric wiring, reactive power, applied power and power factor and store described signal filtering after residual current, cable temperature, three-phase voltage and three-phase current and the power consumption of storing described digital metering, water consumption and gas consumption, described processor connects described RS485 serial communication unit and sends the active power of described detected electric wiring with serial, reactive power, applied power and power factor parallel series send the residual current after described signal filtering, cable temperature, three-phase voltage and three-phase current,
Described power supply unit is used to the power supply of the equipment except power supply unit in described electrical fire monitor, described external clock unit is used to described processor to provide described processor work required clock signal, described pilot lamp is for showing the duty of described electrical fire monitor, and described push-button unit is for receiving user's input to control the work of described processor.
2. electrical fire monitor according to claim 1, it is characterized in that, described electrical fire monitor also comprises: network interface unit, connect described processor, for network, send residual current, cable temperature, three-phase voltage and the three-phase current after active power, reactive power, applied power and the power factor of described detected electric wiring network send described signal filtering.
3. electrical fire monitor according to claim 1, it is characterized in that: described push-button unit is keyboard, described display is liquid crystal display or light-emitting diode display.
4. electrical fire monitor according to claim 1 is characterized in that: described storer is a kind of in random access memory ram, flash memory Flash Memory.
5. the implementation method of the electrical fire monitor of a tape pulse metering, is characterized in that, comprises the following steps:
Step 1: the residual current sampling unit in described electrical fire monitor, temperature sampling unit, three-phase voltage sampling unit and three-phase current sampling unit gather respectively residual current, cable temperature, three-phase voltage and the three-phase current of detected electric wiring;
Step 2: 4 tunnel sampled signal filter units in described electrical fire monitor are connected with the residual current to described detected electric wiring, cable temperature, three-phase voltage and three-phase current and carry out respectively signal filtering with described three-phase current sampling unit with described residual current sampling unit, described temperature sampling unit, described three-phase voltage sampling unit respectively;
Step 3: 3 tunnel pulse input blocks in described electrical fire monitor connect respectively outside ammeter, outside water meter and outside gas meter power consumption, water consumption and the gas consumption with received pulse metering respectively;
Step 4: the processor in described electrical fire monitor connects described 4 tunnel sampled signal filter units to receive residual current, cable temperature, three-phase voltage and the three-phase current after signal filtering, and the three-phase voltage based on after described signal filtering and three-phase current calculate active power, reactive power, applied power and the power factor of detected electric wiring;
Step 5: described processor connects described 3 tunnel pulse input blocks and the power consumption of pulse measurement, water consumption and gas consumption is converted to power consumption, water consumption and the gas consumption of digital metering, and 3 tunnel pulse output units in described electrical fire monitor connect described processor to forward power consumption, water consumption and the gas consumption of pulse measurement;
Step 6: described processor connects display in described electrical fire monitor with the active power, reactive power, applied power and the power factor that show described detected electric wiring and residual current, cable temperature, three-phase voltage and three-phase current after showing described signal filtering and power consumption, water consumption and the gas consumption that shows described digital metering;
Step 7: described processor connects storer in described electrical fire monitor with active power, reactive power, applied power and the power factor of storing described detected electric wiring and residual current, cable temperature, three-phase voltage and three-phase current after storing described signal filtering and power consumption, water consumption and the gas consumption of storing described digital metering;
Step 8: described processor connects residual current, cable temperature, three-phase voltage and the three-phase current after active power, reactive power, applied power and power factor parallel series that RS485 serial communication unit in described electrical fire monitor sends described detected electric wiring with serial send described signal filtering;
Wherein, described electrical fire monitor also comprises power supply unit, be used to the power supply of the equipment except power supply unit in described electrical fire monitor, described electrical fire monitor also comprises the external clock unit, be used to described processor to provide described processor work required clock signal, described electrical fire monitor also comprises pilot lamp, for showing the duty of described electrical fire monitor, described electrical fire monitor also comprises push-button unit, for the input that receives the user to control the work of described processor.
6. the implementation method of electrical fire monitor according to claim 5, it is characterized in that, also comprise step 9 after step 8: described processor connects network interface unit in described electrical fire monitor and sends residual current, cable temperature, three-phase voltage and the three-phase current after active power, reactive power, applied power and the power factor of described detected electric wiring network send described signal filtering with network.
7. the implementation method of electrical fire monitor according to claim 5, it is characterized in that: described push-button unit is keyboard, described display is liquid crystal display or light-emitting diode display.
8. the implementation method of electrical fire monitor according to claim 5 is characterized in that: described storer is a kind of in random access memory ram, flash memory Flash Memory.
CN201310397936.8A 2013-09-04 2013-09-04 Electrical fire monitor unit with pulse metering and implementation method thereof Active CN103426271B (en)

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