CN2731463Y - Intelligent electricity leakage alarm for train - Google Patents
Intelligent electricity leakage alarm for train Download PDFInfo
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- CN2731463Y CN2731463Y CN 200420118032 CN200420118032U CN2731463Y CN 2731463 Y CN2731463 Y CN 2731463Y CN 200420118032 CN200420118032 CN 200420118032 CN 200420118032 U CN200420118032 U CN 200420118032U CN 2731463 Y CN2731463 Y CN 2731463Y
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Abstract
The utility model relates to an intelligent electricity leakage alarm for a train, which comprises a monitoring device and a monitoring circuit, wherein, the monitoring device comprises a casing, a front panel, a color-changing indicator, a branch indicator, a voice alarm, a connection terminal, a push-button and a rear panel, the monitoring circuit is provided with an electricity leakage sensor, an AC/DC converting circuit, an analog switch, an analog-digital converter, a sampling circuit, a microprocessor circuit, a push-button circuit, an alarm indicating circuit, a voice circuit, a signal output circuit and a power circuit, and each circuit is controlled by a microprocessor. The utility model can identify the compartment with electricity-leakage accidents, the branch electricity leakage and the degree of electricity leakage and has a voice-alarm function. Apart from the capacity of real-time alarming transient electricity leakage, the utility model can also carry out recording electricity leakage and play back alarm records in history. The utility model adapts to the situation of constant change in train grouping on the railway, having the advantages of effectively monitoring accidents of electricity leakage, eliminating the potential safety hazard in time and improving the running safety of trains on the railway.
Description
Technical field
The utility model relates to the leakage alarm in a kind of electronic device field, particularly relates to a kind of railroad train intelligence leakage alarm.
Background technology
The passenger train quantity of at present domestic direct current 48V power supply of runing is bigger, because the service time is long, cable wears out, weares and teares, and its service cable is easy to the body leakage initiation fire.It is very fast that electrical fire often plays speed, treatment difficulty, the safety of serious threat passenger vehicle and passenger's life.Therefore can locate the electric leakage position accurately, fast, take effective measures and in time get rid of disaster hidden-trouble, prevent the generation of serious accident, be to ensure the normally key of operation of passenger vehicle property, passenger's personal safety and railway, has very practical meaning.
On railroad train, dispose the leakage alarm that uses at present, have that reliability is low, rate of false alarm is high, the every joint of full train compartment all sends warning when alarm condition occurring, can not determine the leak current fault position, the efficient of fixing a breakdown is low, and can not store historical alert data, and shortcomings such as fault foundation can't be provided for service work, incur loss through delay easily best strick precaution opportunity, cause fire failure.
This shows that there are many defectives in above-mentioned existing leakage alarm, and demands urgently being improved.
Above-mentioned defective in view of existing leakage alarm existence, for solving the practical problems of puzzlement leakage-current alarm, the design people is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of railroad train intelligence leakage alarm of novel practical, improve the deficiency of existing leakage alarm, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the utility model that has practical value finally.
This alarm adopts advanced microprocessor technology, and novel design has not only overcome whole shortcomings of existing alarm, and the function of setting up novel practical, and reliability is higher, installs, easy to use, compares with existing leakage alarm to have following characteristics at least:
1, can judge that not only full car DC power system has or not electric leakage, and can accurately locate the compartment of leak current fault.
2, can monitor interior branch road leak current fault, realize the branch road warning function.
3, the compartment of leak current fault is realized the audio alert of branch road, polarity.
4, electric leakage degree (real leakage, false leak) is realized the voice classifying alarm.
5, can judge and confirm that different compartments leak electricity simultaneously and the polarity of leaking electricity, report to the police respectively.
6, can judge full train multiple spot electric leakage, each saves the compartment and reports to the police respectively.
7, to the transient state electric leakage situation Realtime Alerts of leakage loose contact, has the leakage-current alarm record, playback history alarm logging function.
8, have power-down protection, after the external power source outage, the data that microprocessor is preserved are not lost.
8, various warnings all have audio alert prompt facility and light warning deixis, adopt red, green variable color to flash light warning, distinguish electric leakage polarity, flash frequency separation electric leakage degree, and audio alert is play electric leakage polarity and electric leakage degree.
9, when maintenance and eliminating leak current fault, need not separation compartment decoupling device inspection, but also double as is for overhauling instrument for this alarm, indication fault is got rid of situation.
10, be fit to the situation that train marshalling list changes, single-unit, more piece compartment combination in any.
Summary of the invention
The purpose of this utility model is to overcome the defective that existing leakage alarm exists, and a kind of railroad train intelligence leakage alarm of novel practical is provided.Technical matters to be solved is to make it can locate the leak current fault compartment, branch road, the electric leakage degree, sound pronunciation is reported to the police, judge and confirm that different compartments leak electricity simultaneously and leak electricity polarity, but the transient state of loose contact is leaked electricity situation except that Realtime Alerts, record also can leak electricity, the playback history alarm logging, when getting rid of leak current fault, need not separation compartment decoupling device inspection, suitable railroad train is often organized into groups the situation of variation, can effectively monitor leak current fault, in time discharge potential safety hazard, improve the security of railroad train operation, the safety that ensures train apparatus property and passenger person life is had very practical meaning, become a novelty, progressive, practical new design.
The technical scheme that its technical matters that solves the utility model adopts is: be made of monitoring device and observation circuit two parts, monitoring device is by casing 1, front panel 2, variable color pilot lamp 3, branch road pilot lamp 4, phonetic alarm 5, connection terminal 6, button 7 and rear panel 8 are formed, observation circuit is by electricity leakage sensor 11, ac-dc conversion circuit 12, analog switch 13, analog to digital converter ADIN2, analog to digital converter ADIN1, sample circuit 14, microcontroller circuit 15, key circuit 16, anodal indicating circuit 17A, negative pole indicating circuit 17B, branch road indicating circuit 17C, sound circuit 18, signal output apparatus 19 and power circuit 20 are formed, it is characterized in that monitoring device partly has casing 1, casing 1 has front panel 2 and rear panel 8, the upper middle position of front panel 2 has phonetic alarm 5, phonetic alarm 5 left ends and right-hand member are respectively arranged with variable color pilot lamp 3, its lower end is provided with branch road pilot lamp 4, the bottom of rear panel 8 is provided with connection terminal 6, the upper end of the left upper end connection terminal 6 of plate 8 is provided with button 7 in the back, observation circuit partly has electricity leakage sensor 11, electricity leakage sensor 11 connects ac-dc conversion circuit 12, ac-dc conversion circuit 12 connects analog switch 13, analog switch 13 connection mode number converter ADIN2, analog to digital converter ADIN2 is the built-in analog to digital converter of microcontroller circuit 15, sample circuit 14 connection mode number converter ADIN1, analog to digital converter ADIN1 is the built-in analog to digital converter of microcontroller circuit 15, microcontroller circuit 15 connects key circuit 16, warning indicating circuit 17, sound circuit 18 and signal output apparatus 19, power circuit 20 is powered to whole observation circuit.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, below with preferred embodiment of the present utility model and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the schematic appearance of the utility model railroad train intelligence leakage alarm.
Fig. 2 is the schematic block circuit diagram of the utility model railroad train intelligence leakage alarm.
Fig. 3 is the circuit diagram of the utility model railroad train intelligence leakage alarm.
Fig. 4 is the charactron display circuit figure of the utility model railroad train intelligence leakage alarm.
1: casing 2: front panel
3: variable color pilot lamp 4: the branch road pilot lamp
5: phonetic alarm 6: connection terminal
7: button 8: rear panel
11: electricity leakage sensor 12: ac-dc conversion circuit
13: analog switch 14: sample circuit
15: microcontroller circuit 16: key circuit
17: warning indicating circuit 18: sound circuit
19: signal output apparatus 20: power circuit
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of the railroad train that the utility model proposes intelligence leakage alarm, structure, feature and effect thereof, describe in detail as after.
Seeing also shown in Figure 1ly, is the schematic appearance of the utility model railroad train intelligence leakage alarm.The utility model railroad train intelligence leakage alarm mainly comprises by monitoring device and observation circuit and forming, wherein:
Above-mentioned monitoring device comprises casing 1, phonetic alarm 5, variable color pilot lamp 3, branch road pilot lamp 4, wherein:
The front end of casing 1 is provided with front panel 2, the upper middle position of front panel 2 is provided with phonetic alarm 5, phonetic alarm 5 left ends and right-hand member are respectively arranged with variable color pilot lamp 3, the lower end of front panel 2, the below of phonetic alarm 5 and variable color pilot lamp 3 is provided with branch road pilot lamp 4, and the branch road pilot lamp is made up of 8 light emitting diodes;
This casing 1 rear end is provided with rear panel 8, and the upper end of the left upper end connection terminal 6 of plate 8 is provided with button 7 in the back;
This variable color pilot lamp 3 has variable color luminotron 3A and two variable color luminotrons of variable color luminotron 3B, and wherein, variable color luminotron 3A is arranged on the left side of phonetic alarm 5, and variable color luminotron 3B is arranged on the right side of phonetic alarm 5;
This variable color pilot lamp 3 is green when flat, and the indication power connection is working properly, and red during warning, green is alternately flashed, wherein, and the usefulness of variable color luminotron 3A indication main track leakage-current alarm, the usefulness of variable color luminotron 3B indication negative wire leakage-current alarm;
This branch road pilot lamp 4 has 8 light emitting diodes, is arranged on the bottom of front panel 2, indicates branch road to report to the police respectively.
Above-mentioned observation circuit, see also Fig. 2 and Fig. 3, shown in Figure 2 is the utility model railroad train intelligence leakage alarm schematic block circuit diagram, shown in Figure 3 is the utility model railroad train intelligence leakage alarm circuit theory diagrams, now the particular circuit configurations with observation circuit of the present utility model is described in detail as follows, this observation circuit comprises power circuit 20, and this power circuit 20 connects microcontroller circuit (15), electricity leakage sensor 11, signal output apparatus 19 and warning indicating circuit (17);
Wherein: this power circuit 20, be power supply to the entire circuit power supply, comprise analog to digital converter ADIN1 and analog to digital converter ADIN2 in the microcontroller circuit 15, analog to digital converter ADIN1 and analog to digital converter ADIN2 are the built-in analog to digital converters of microcontroller circuit 15;
Electricity leakage sensor 11 connects ac-dc conversion circuit 12 in this observation circuit, the analog to digital converter ADIN2 that ac-dc conversion circuit 12 connects in the microcontroller circuit 15, and microcontroller circuit 15 connects warning indicating circuit 17 and signal output apparatus 19;
This observation circuit is by electricity leakage sensor 11, ac-dc conversion circuit 12, analog switch 13, analog to digital converter ADIN2, analog to digital converter ADIN1, sample circuit 14, microcontroller circuit 15, key circuit 16, warning indicating circuit 17, sound circuit 18, signal output apparatus 19 and power circuit 20 are formed, the electricity leakage sensor 11 of observation circuit part connects ac-dc conversion circuit 12, ac-dc conversion circuit 12 connects analog switch 13, analog switch 13 connection mode number converter ADIN2, analog to digital converter ADIN2 is the built-in analog to digital converter of microcontroller circuit 15, sample circuit 14 connection mode number converter ADIN1, analog to digital converter ADIN1 is the built-in analog to digital converter of microcontroller circuit 15, microcontroller circuit 15 connects key circuit 16, warning indicating circuit 17, sound circuit 18 and signal output apparatus 19, power circuit 20 is powered to whole observation circuit;
Wherein: warning indicating circuit 17 comprises anodal indicating circuit 17A, negative pole indicating circuit 17B and branch road indicating circuit 17C, anodal indicating circuit 17A is by triode Q1, triode Q2, luminotron D1, luminotron D2, resistance R 1, resistance R 2, resistance R 5 and resistance R 7 connect and compose successively, negative pole indicating circuit 17B is by triode Q3, triode Q4, luminotron D3, luminotron D4, resistance R 3, resistance R 4, resistance R 6 and resistance R 8 connect and compose successively, branch road indicating circuit 17C is by light emitting diode D8, light emitting diode D9, light emitting diode D10, light emitting diode D11, light emitting diode D12, light emitting diode D13, light emitting diode D14, the corresponding successively resistance R P1 that connects of light emitting diode D15, resistance R P1 connects microcontroller circuit 15 and constitutes;
Wherein: above-mentioned electricity leakage sensor 11, ac-dc conversion circuit 12, analog switch 13, analog to digital converter ADIN2, microcontroller circuit 15 and signal output apparatus 19 are formed the electric leakage metering circuit, metering circuit connects signal output apparatus 19 by microcontroller circuit 15, electricity leakage sensor 11 connects ac-dc conversion circuit 12, ac-dc conversion circuit 12 connects analog switch 13, analog switch 13 connection mode number converter ADIN2 constitute, and analog to digital converter ADIN2 is the built-in analog to digital converter of microcontroller circuit 15; Wherein:
Electricity leakage sensor 11 comprises that electricity leakage sensor LDI1 is to electricity leakage sensor LDI16, totally 16 electricity leakage sensors, ac-dc conversion circuit 12 has 16 cover AC/DC convertor, form to AC/DC convertor 12-16 by 16 cover AC/DC convertor 12-1, wherein AC/DC convertor 12-1 is connected in parallel by stabilivolt DW1 and capacitor C D1, an one node ground connection, another node connects resistance R D1 and constitutes, the left end of resistance R D1 is the input end of AC/DC convertor 12-1, the right-hand member of resistance R D1 is the output terminal of AC/DC convertor 12-1, the inside of every cover connects all identical with it in the 16 cover AC/DC convertor, analog switch 13 is made up of two 8 path analoging switch circuit U 3 and U4, the model of analog switching circuit is CD4051, analog switching circuit U3 and U4 respectively have X0 to X78 input end, have 16 input ends, wherein: 16 electricity leakage sensor LDI1 are to electricity leakage sensor LDI16, each electricity leakage sensor has two output terminals, one end ground connection, the corresponding respectively input end that connects AC/DC convertor 12-1 to AC/DC convertor 12-16 of the other end, both: resistance R D1 is to the end of resistance R D16, and AC/DC convertor 12-1 is to the corresponding respectively input end that connects analog switch 13 of output terminal of AC/DC convertor 12-16; Wherein:
If when only monitoring one road leakage-current alarm, metering circuit can be simplified, only adopt an electricity leakage sensor and an AC/DC convertor, analog switch 13 is simplified need not, connect ac-dc conversion circuit 12 by electricity leakage sensor 11, ac-dc conversion circuit 12 direct connection mode number converter ADIN2, analog to digital converter ADIN2 connects microcontroller circuit 15, the PWM output terminal of microcontroller circuit 15 connects signal output apparatus 19, the output of signal output apparatus 19 connects compartment ground wire G0, signal output apparatus 19 is directly powered by monitored 48V power supply, connect the anode of 48V power supply and the ground terminal GND of 48V power supply respectively, wherein analog to digital converter ADIN2 can be the analog to digital converter of microcontroller circuit 15 inside, also can adopt independently analog to digital converter;
This signal output apparatus 19 is by triode Q6, triode Q7, triode Q8, capacitor C 9, diode D7, resistance R 16, resistance R 17, resistance R 18, resistance R 19, connecting and composing successively of capacitor C 3 and capacitor C 8, signal output apparatus 19 is that filtering circuit and power amplifier constitute, resistance R 16, resistance R 17 and capacitor C 3 connect and compose filtering circuit, the HFS of the pulse-width signal of the PWM end output of filtering microprocessor U2, through export the positive and negative terminal of tested power supply+48V after the power amplification to by compartment ground wire G0 by its output terminal, as measuring-signal, measure the power supply of loop of electric leakage and the leakage current between the compartment ground wire for metering circuit, signal output apparatus 19 can also adopt integrated amplifier to realize;
Above-mentioned power circuit 20,48 volts of power supplies of direct current connect the end of voltage dependent resistor (VDR) RV1 and the anode of diode D6 by fuse FUSE1, the other end ground connection of voltage dependent resistor (VDR) RV1, the negative terminal of diode D6 connects 1 pin of switch voltage-stabilizing module U1 and the node of capacitor C 4, the other end ground connection of capacitor C 4,3 pin of switch voltage-stabilizing module U1 and 5 pin ground connection, its 2 pin connects the node of inductance L 1 and diode D5 negative pole, the plus earth of diode D5, the node that the other end of inductance L 1 connects 4 pin of switch voltage-stabilizing module U1 and capacitor C 1 as the output of stabilized voltage supply to whole circuit supplies, the other end ground connection of capacitor C 1;
Above-mentioned voice alarm circuit 18 is made up of voice module U5, triode Q5, sounder LS1, resistance R 15 and resistance R 14, the audio alert control signal realizes that by the voice control end of the output port connection voice module U5 of the microprocessor U2 of microcontroller circuit 15 the alarm voice signal of the 8 pin output of voice module U5 sends audio alert sound by Q5 power amplification rear drive sounder LS1;
Above-mentioned sample circuit 14 is made up of resistance R 9, resistance R 10, potentiometer R11 and analog to digital converter ADIN1, an end that connects resistance R 9 by power positive end+48V, power ground GND connects an end of resistance R 10, resistance R 9 other ends are connected compartment ground wire G0 and connect potentiometer R11 with the node of resistance R 10 other ends, potentiometer R11 other end ground connection, potentiometer R11 mid point connection mode number converter ADIN1, analog to digital converter ADIN1 is microcontroller circuit 15 internal mode number converters;
This key circuit 16 is provided with button SW1, button SW2 and button SW3, button SW1, button SW2 constitute key circuit with 3 input ends that button SW3 is connected microprocessor U2 respectively, button 1 is the function shift key, button 2 is to increase key, button 3 is to reduce key, operation push-button can be realized functions such as historical alert data shows, check and correction clock, cooperates by software and realizes;
Above-mentioned leakage-current alarm writing function connects battery BT1 by microprocessor U2 to be realized, the positive pole of battery BT1 connects the VBAT end of microprocessor U2, the minus earth of battery BT1, make the storer SRAM and the real-time clock of microprocessor U2 inside under the situation of primary power power down, can continue to keep power supply by battery BT1, the electric leakage data that are kept among the storer SRAM can be preserved for a long time, realize the function of leakage-current alarm reference record, and realize power-down protection;
Above-mentioned warning indicating circuit 17 can also increase charactron display circuit 17D to be realized, see also shown in Figure 4, charactron display circuit 17D comprises that 8 charactron DS1 are to charactron DS8, resistance R P1 and bit code driving circuit U3, microprocessor U2 control charactron display circuit 17D work, microprocessor U2 connects resistance R P1, resistance R P1 connects and connects charactron DS1 respectively to charactron DS8, segment encode as charactron drives, microprocessor U2 connects bit code driving circuit U3, bit code driving circuit U3 connects the negative electrode of 8 charactron DS1 to charactron DS8 respectively, bit code as luminotron drives, charactron display circuit 17D is as the display alarm date, time branch road number and electric leakage parameter, charactron display circuit 17D also can use separately, as the usefulness of the parameter demonstration and the indication of reporting to the police.
It below only is preferred embodiment of the present utility model, those skilled in the art can modify variation to the foregoing description, current at the integrated circuit industry high speed development particularly, for example the function with several integrated circuit is integrated in the integrated circuit, and can realize multiple model also being arranged, for example use identical and the integrated circuit that model is different etc. of major function with a kind of integrated circuit of function.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in the scope that does not break away from technical solutions of the utility model, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, foundation technical spirit of the present utility model is to above any simple modification that embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (10)
1, a kind of railroad train intelligence leakage alarm comprises monitoring device and observation circuit composition, it is characterized in that wherein:
This monitoring device comprises casing (1), and this casing (1) has front panel (2), and front panel (2) has branch road pilot lamp (4);
This observation circuit comprises power circuit (20), and this power circuit (20) connects microcontroller circuit (15), electricity leakage sensor (11) and warning indicating circuit (17).
2, railroad train intelligence leakage alarm according to claim 1 is characterized in that described observation circuit wherein:
This power circuit (20) is the power supply to the entire circuit power supply;
This observation circuit, electricity leakage sensor (11) connects ac-dc conversion circuit (12), ac-dc conversion circuit (12) connects the analog to digital converter (ADIN2) in the microcontroller circuit (15), and microcontroller circuit (15) connects warning indicating circuit (17) and signal output apparatus (19).
3, railroad train intelligence leakage alarm according to claim 2, the front end that it is characterized in that described casing (1) is provided with front panel (2), the upper middle position of front panel (2) is provided with phonetic alarm (5), phonetic alarm (5) left end and right-hand member are respectively arranged with variable color pilot lamp (3), the lower end of front panel (2), the below of phonetic alarm (5) and variable color pilot lamp (3) is provided with branch road pilot lamp (4), and the branch road pilot lamp is made up of 8 light emitting diodes;
This casing (1) rear end is provided with rear panel (8), and the upper end of the left upper end connection terminal (6) of plate (8) is provided with button (7) in the back;
This variable color pilot lamp (3) has variable color luminotron (3A) and two variable color luminotrons of variable color luminotron (3B), and wherein, variable color luminotron (3A) is arranged on the left side of phonetic alarm (5), and variable color luminotron (3B) is arranged on the right side of phonetic alarm (5);
This branch road pilot lamp (4) has 8 light emitting diodes, is arranged on the bottom of front panel (2), indicates branch road to report to the police respectively.
4, railroad train intelligence leakage alarm according to claim 2 is characterized in that wherein:
This electricity leakage sensor (11) comprises electricity leakage sensor (LDI1) to electricity leakage sensor (LDI16), totally 16 electricity leakage sensors;
This ac-dc conversion circuit (12) has 16 cover AC/DC convertor, form by 16 cover AC/DC convertor (12-1) to AC/DC convertor (12-16), wherein AC/DC convertor (12-1) is connected in parallel by stabilivolt (DW1) and electric capacity (CD1), an one node ground connection, another node connects resistance (RD1) and constitutes, the left end of resistance (RD1) is the input end of AC/DC convertor (12-1), the right-hand member of resistance (RD1) is the output terminal of AC/DC convertor (12-1), and the inside of every cover connects all identical in the 16 cover AC/DC convertor;
This analog switch (13) is formed by two 8 path analoging switch circuit (U3) with (U4), the model of analog switching circuit is (CD4051), analog switching circuit (U3) and (U4) (X0) to (X7) 8 input ends are arranged respectively, have 16 input ends, wherein: 16 electricity leakage sensors (LDI1) are to electricity leakage sensor (LDI16), each electricity leakage sensor has two output terminals, one end ground connection, the corresponding respectively input end that connects AC/DC convertor (12-1) to AC/DC convertor (12-16) of the other end, both: resistance (RD1) is to an end of resistance (RD16), and AC/DC convertor (12-1) is to the corresponding respectively input end that connects analog switch (13) of output terminal of AC/DC convertor (12-16);
Circuit can also be simplified, only adopt an electricity leakage sensor and an AC/DC convertor, analog switch (13) is simplified need not, connect ac-dc conversion circuit (12) by electricity leakage sensor (11), ac-dc conversion circuit (12) is connection mode number converter (ADIN2) directly, analog to digital converter (ADIN2) connects microcontroller circuit (15), the PWM output terminal of microcontroller circuit (15) connects signal output apparatus (19), the output of signal output apparatus (19) connects compartment ground wire (G0), signal output apparatus (19) is directly powered by monitored 48V power supply, connects the anode of power supply 48V and the ground terminal (GND) of power supply 48V respectively;
Analog to digital converter (ADIN2) is the inner analog to digital converter of microcontroller circuit (15), also can adopt independently analog to digital converter.
5, railroad train intelligence leakage alarm according to claim 2, it is characterized in that described warning indicating circuit (17) comprises anodal indicating circuit (17A), negative pole indicating circuit (17B) and branch road indicating circuit (17C), anodal indicating circuit (17A) is by triode (Q1), triode (Q2), luminotron (D1), luminotron (D2), resistance (R1), resistance (R2), resistance (R5) and resistance (R7) connect and compose successively, negative pole indicating circuit (17B) is by triode (Q3), triode (Q4), luminotron (D3), luminotron (D4), resistance (R3), resistance (R4), resistance (R6) and resistance (R8) connect and compose successively, branch road indicating circuit (17C) is by light emitting diode (D8), light emitting diode (D9), light emitting diode (D10), light emitting diode (D11), light emitting diode (D12), light emitting diode (D13), light emitting diode (D14), the corresponding successively resistance (RP1) that connects of light emitting diode (D15), resistance (RP1) connects microcontroller circuit (15).
6, railroad train intelligence leakage alarm according to claim 2, it is characterized in that described power circuit (20), connect an end of voltage dependent resistor (VDR) (RV1) and the anode of diode (D6) by 48 volts of power supplies of direct current by fuse (FUSE1), the other end ground connection of voltage dependent resistor (VDR) (RV1), the negative terminal of diode (D6) connects 1 pin of switch voltage-stabilizing module (U1) and the node of electric capacity (C4), the other end ground connection of electric capacity (C4), 3 pin of switch voltage-stabilizing module (U1) and 5 pin ground connection, its 2 pin connects the node of inductance (L1) and diode (D5) negative pole, the plus earth of diode (D5), the node that the other end of inductance (L1) connects 4 pin of switch voltage-stabilizing module (U1) and electric capacity (C1) as the output of stabilized voltage supply to whole circuit supplies, the other end ground connection of electric capacity (C1).
7, railroad train intelligence leakage alarm according to claim 2, it is characterized in that described voice alarm circuit (18) is made up of voice module (U5), triode (Q5), sounder (LS1), resistance (R15) and resistance (R14), the audio alert control signal is realized that by the voice control end of the output port connection voice module (U5) of the microprocessor (U2) of microcontroller circuit (15) the alarm voice signal of the 8 pin output of voice module (U5) sends audio alert sound by (Q5) power amplification rear drive sounder (LS1).
8, railroad train intelligence leakage alarm according to claim 2, it is characterized in that described sample circuit (14) is by resistance (R9), resistance (R10), potentiometer (R11) and analog to digital converter (ADIN1) are formed, an end that connects resistance (R9) by power positive end+48V, power ground (GND) connects an end of resistance (R10), resistance (R9) other end is connected compartment ground wire (G0) and connects potentiometer (R11) with the node of resistance (R10) other end, potentiometer (R11) other end ground connection, potentiometer (R11) mid point connection mode number converter (ADIN1), analog to digital converter (ADIN1) are microcontroller circuit (15) internal mode number converters;
And key circuit (16) is provided with button (SW1), button (SW2) and button (SW3), and 3 input ends that button (SW1), button (SW2) and button (SW3) are connected microprocessor (U2) respectively constitute key circuits.
9, railroad train intelligence leakage alarm according to claim 5, it is characterized in that described warning indicating circuit (17) can also increase charactron display circuit (17D) and realize, by microprocessor (U2) control charactron display circuit (17D) work, microprocessor (U2) connects resistance (RP1), resistance (RP1) connects and connects charactron (DS1) respectively to charactron (DS8), segment encode as charactron drives, microprocessor (U2) connects bit code driving circuit (U3), bit code driving circuit (U3) connects the negative electrode of 8 charactrons (DS1) to charactron (DS8) respectively, bit code as luminotron drives, and charactron display circuit (17D) also can use separately.
10, railroad train intelligence leakage alarm according to claim 9; it is characterized in that wherein: the VBAT end of microprocessor (U2) connects the positive pole of battery (BT1), and the minus earth of battery (BT1) is realized leakage-current alarm writing function and power-down protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420118032 CN2731463Y (en) | 2004-10-27 | 2004-10-27 | Intelligent electricity leakage alarm for train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420118032 CN2731463Y (en) | 2004-10-27 | 2004-10-27 | Intelligent electricity leakage alarm for train |
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| CN2731463Y true CN2731463Y (en) | 2005-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420118032 Expired - Fee Related CN2731463Y (en) | 2004-10-27 | 2004-10-27 | Intelligent electricity leakage alarm for train |
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Cited By (8)
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| CN102034333A (en) * | 2010-12-01 | 2011-04-27 | 王玉珠 | Novel multipath signal detection and voice alarm device |
| CN101042418B (en) * | 2006-03-23 | 2011-09-07 | 株式会社京浜 | Leakage detection circuit and battery electronic control unit |
| CN102407778A (en) * | 2010-09-21 | 2012-04-11 | 江苏春兰清洁能源研究院有限公司 | Real-time anti-interference complementation type vehicle-mounted leakage detection system |
| CN105137271A (en) * | 2015-10-15 | 2015-12-09 | 兖州煤业股份有限公司 | Locomotive electrical fault diagnosis device |
| CN109239511A (en) * | 2017-07-10 | 2019-01-18 | 比亚迪股份有限公司 | Train, power supply system of train and its detection of electrical leakage positioning device, method |
| CN109228872A (en) * | 2017-07-10 | 2019-01-18 | 比亚迪股份有限公司 | Power supply system of train and its detection of electrical leakage positioning device, method and train |
| CN109239510A (en) * | 2017-07-10 | 2019-01-18 | 比亚迪股份有限公司 | Train, power supply system of train and its detection of electrical leakage positioning device, method |
| CN112763036A (en) * | 2020-12-23 | 2021-05-07 | 厦门巨林仪器有限公司 | Weighing alarm control circuit, equipment and display instrument |
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2004
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| CN101042418B (en) * | 2006-03-23 | 2011-09-07 | 株式会社京浜 | Leakage detection circuit and battery electronic control unit |
| CN102407778A (en) * | 2010-09-21 | 2012-04-11 | 江苏春兰清洁能源研究院有限公司 | Real-time anti-interference complementation type vehicle-mounted leakage detection system |
| CN102407778B (en) * | 2010-09-21 | 2014-01-15 | 江苏春兰清洁能源研究院有限公司 | Real-time anti-interference complementation type vehicle-mounted leakage detection system |
| CN102034333A (en) * | 2010-12-01 | 2011-04-27 | 王玉珠 | Novel multipath signal detection and voice alarm device |
| CN105137271A (en) * | 2015-10-15 | 2015-12-09 | 兖州煤业股份有限公司 | Locomotive electrical fault diagnosis device |
| CN109239511A (en) * | 2017-07-10 | 2019-01-18 | 比亚迪股份有限公司 | Train, power supply system of train and its detection of electrical leakage positioning device, method |
| CN109228872A (en) * | 2017-07-10 | 2019-01-18 | 比亚迪股份有限公司 | Power supply system of train and its detection of electrical leakage positioning device, method and train |
| CN109239510A (en) * | 2017-07-10 | 2019-01-18 | 比亚迪股份有限公司 | Train, power supply system of train and its detection of electrical leakage positioning device, method |
| CN109239510B (en) * | 2017-07-10 | 2020-07-10 | 比亚迪股份有限公司 | Train, train power supply system and electric leakage detection positioning device and method thereof |
| CN112763036A (en) * | 2020-12-23 | 2021-05-07 | 厦门巨林仪器有限公司 | Weighing alarm control circuit, equipment and display instrument |
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