CN108760335B - Control circuit of broken wire box, broken wire box and vehicle detecting system - Google Patents
Control circuit of broken wire box, broken wire box and vehicle detecting system Download PDFInfo
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- CN108760335B CN108760335B CN201810523903.6A CN201810523903A CN108760335B CN 108760335 B CN108760335 B CN 108760335B CN 201810523903 A CN201810523903 A CN 201810523903A CN 108760335 B CN108760335 B CN 108760335B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
An embodiment of the present invention provides a control circuit of a wire breakage box, and a vehicle detection system, wherein the control circuit includes: the control circuit comprises a control port, a first connecting end, a second connecting end, a third connecting end, a first indicator light, a second indicator light and a secondary control circuit; inputting a control signal through the control port to control the second indicator light to be in a first state; and the secondary control circuit is controlled to control the first indicator light to be in the second state, and simultaneously control the connection among the first connecting end, the second connecting end and the third connecting end, and when the first state is inconsistent with the second state, the control circuit is determined to be in fault. According to the scheme of the embodiment of the invention, the control signal is input to the second indicator light and the secondary control circuit through the control port, when the states of the first indicator light and the second indicator light are inconsistent, the control circuit is determined to have a fault, so that a tester can conveniently ensure the accuracy of a detection result and the accuracy of real vehicle function judgment.
Description
Technical Field
The invention relates to the technical field of vehicle testing, in particular to a control circuit of a wire breaking box, the wire breaking box and a vehicle detection system.
Background
With the continuous development of the electric automobile technology and the wide popularization of electric automobiles, in the production process of electric automobiles, in order to ensure that the functions of the electric automobiles after production reach the expected state, higher requirements are made on the real automobile function testing technology of the electric automobiles. In the process of carrying out real vehicle function test to electric automobile, can frequently use the broken string box to test a certain passageway, but traditional broken string box can only realize the intercommunication and the disconnection of a certain passageway, but traditional broken string box can not discern whether self breaks down, if broken string box self breaks down, can seriously influence the test result, lead to the test result inaccurate, influence the tester to the judgement of real vehicle function, also can't satisfy the demand of present automated test, and difficult wide use.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide a control circuit of a wire breaking box, the wire breaking box and a vehicle detection system, which are used for solving the problems that the traditional wire breaking box cannot identify whether the wire breaking box has a fault or not, if the wire breaking box has the fault, a test result is seriously influenced, the test result is inaccurate, the judgment of a tester on the function of a real vehicle is influenced, and the requirement of the existing automatic test cannot be met.
In order to solve the above technical problem, an embodiment of the present invention provides a control circuit of a wire breaking box, including: the first connecting end, the second connecting end, the third connecting end, the control port, the first indicator light, the second indicator light and the secondary control circuit;
the secondary control circuit is respectively connected with the first connecting end, the second connecting end, the third connecting end and the first indicator light;
the control port is respectively connected with the control end of the second indicator light and the control end of the secondary control circuit;
inputting a control signal through the control port to control the second indicator light to be in a first state; and the secondary control circuit is controlled to control the first indicator light to be in the second state, and simultaneously control the connection among the first connecting end, the second connecting end and the third connecting end, and when the first state is inconsistent with the second state, the control circuit is determined to be in fault.
Specifically, as the control circuit of the disconnection box described above, the secondary control circuit includes: the power supply comprises a first control switch, a second control switch, a power supply module, a first resistor and a second resistor;
a first contact of the first control switch is connected with a first end of the first indicator lamp and is connected with the high level of the power supply module through a first resistor; the second contact and the third contact of the first control switch are connected with the first connecting end; the fourth contact of the first control switch is connected with the second connecting end; a fifth contact of the first control switch is connected with the low level of the power supply module;
a seventh contact of the second control switch is connected with the second end of the first indicator light and is connected with the high level of the power supply module through a second resistor; the eighth contact and the ninth contact of the second control switch are connected with the third connecting end; the tenth contact of the second control switch is connected with the second connecting end; an eleventh contact of the second control switch is connected with the low level of the power supply module; the twelfth contact of the second control switch is connected with the sixth contact of the first control switch;
the third end of the first indicator light is connected with the high level of the power supply module;
the control end of the first control switch and the control end of the second control switch are both connected with the control port.
Preferably, as the control circuit of the wire breaking box described above, the secondary control circuit further includes a third resistor and a fourth resistor;
two ends of the third resistor are respectively connected with the fifth contact and the low level of the power supply module;
and two ends of the fourth resistor are respectively connected with the eleventh contact and the low level of the power supply module.
Specifically, as for the control circuit of the wire breaking box, the first control switch and the second control switch are both double-pole double-throw switches.
Another embodiment of the present invention also provides a wire break box, including: the control circuit of the wire breaking box is arranged in the box body;
the first indicator lamp group and the second indicator lamp group are arranged on the upper end face of the box body, the first indicator lamp group comprises at least one first indicator lamp, the second indicator lamp group comprises at least one second indicator lamp, and each first indicator lamp and one second indicator lamp are arranged correspondingly;
the first serial port, the second serial port, the third serial port, the control serial port, the power switch and the power line interface are arranged on the first side end face of the box body;
the power line interface is used for being connected with an external power supply and supplying power to a power module of the control circuit;
the first serial port comprises at least one first connecting end, the second serial port comprises at least one second connecting end, the third serial port comprises at least one third connecting end, and the control serial port comprises at least one control port.
Specifically, as for the wire breaking box, the number of the first connection ends in the first serial port, the number of the second connection ends in the second serial port, the number of the third connection ends in the third serial port, the number of the first indicator lamps in the first indicator lamp set, and the number of the second indicator lamps in the second indicator lamp set are all preset numbers.
Further, as for the wire breaking box, a power indicator and a system indicator are also arranged on the upper end surface of the wire breaking box;
the power supply indicator lamp is connected with the power switch, and when the power switch is in a switch-on state, the power supply indicator lamp is lightened;
the system indicator light is connected with the control serial port, and when the control serial port inputs a control signal, the system indicator light is lightened.
Specifically, as above-mentioned broken string box, all be provided with the handle on the second side terminal surface of box and the third side terminal surface, second side terminal surface sets up with third side terminal surface is relative, and second side terminal surface and third side terminal surface all are adjacent with up end and first side terminal surface.
An embodiment of the present invention also provides a vehicle detection system, including: the wire breaking box as described above.
Compared with the prior art, the control circuit of the wire breaking box, the wire breaking box and the vehicle detection system provided by the embodiment of the invention at least have the following beneficial effects:
in the embodiment of the invention, a control signal is input to the second indicator light and the secondary control circuit through the control port, wherein the second indicator light is in a first state according to the control signal; the secondary control circuit connects the first connecting end, the second connecting end and the third connecting end according to the control signal to form a channel for vehicle detection, and the first indicator light can be in a second state in the process. When the second state that first pilot lamp appears is inconsistent with the first state that the second pilot lamp appears, confirm that control circuit breaks down, control circuit does not carry out the correct connection to first link, second link and third link after receiving control signal promptly, lead to the testing result inaccurate, the tester of being convenient for has an accuracy judgement to the result that detects each time according to the state of first pilot lamp and second pilot lamp, guarantee the accuracy of testing result, and the accuracy of judging to real car function, simultaneously, the tester of being convenient for confirms the control circuit who breaks down fast, and maintain it.
Drawings
FIG. 1 is a schematic circuit diagram of a control circuit of a disconnect box according to an embodiment of the present invention;
FIG. 2 is a second schematic circuit diagram of the control circuit of the wire-breaking box according to the embodiment of the present invention;
FIG. 3 is a third schematic circuit diagram of a control circuit of the wire-breaking box according to an embodiment of the present invention;
FIG. 4 is a fourth schematic diagram of the circuit of the control circuit of the wire-breaking box according to the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a wire breaking box according to an embodiment of the present invention;
FIG. 6 is a second schematic structural diagram of the wire breaking box according to the embodiment of the present invention;
fig. 7 is a third schematic structural diagram of the wire breaking box according to the embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
Referring to fig. 1 to 4, a preferred embodiment of the present invention provides a control circuit of a wire disconnection box, including: a first connection terminal 1 (shown as T1 in the figure), a second connection terminal 2 (shown as T2 in the figure), a third connection terminal 3 (shown as T3 in the figure), a control port 4 (shown as T4 in the figure), a first indicator lamp 5 (shown as L1 in the figure), a second indicator lamp 6 (shown as L2 in the figure), and a secondary control circuit 7;
the secondary control circuit 7 is respectively connected with the first connecting end 1, the second connecting end 2, the third connecting end 3 and the first indicator lamp 5;
the control port 4 is respectively connected with the control end of the second indicator light 6 and the control end of the secondary control circuit 7;
a control signal is input through the control port 4 to control the second indicator light 6 to present a first state; and through controlling the secondary control circuit 7, the first indicator light 5 is controlled to be in the second state, the connection among the first connection end 1, the second connection end 2 and the third connection end 3 is controlled at the same time, and when the first state is inconsistent with the second state, the control circuit is determined to be in fault.
In the embodiment of the invention, a control signal is input to the second indicator light 6 and the secondary control circuit 7 through the control port 4, wherein the second indicator light 6 is in a first state according to the control signal; the secondary control circuit 7 connects the first connection end 1, the second connection end 2 and the third connection end 3 according to the control signal, so that the first connection end, the second connection end 2 and the third connection end form a channel for vehicle detection, and in the process, the first indicator lamp 5 can be in a second state. When the second state that first pilot lamp 5 appears is inconsistent with the first state that second pilot lamp 6 appears, confirm that control circuit breaks down, control circuit does not correctly connect first link 1, second link 2 and third link 3 after receiving control signal, lead to the testing result inaccurate, be convenient for the tester according to first pilot lamp 5 and the state of second pilot lamp 6, all there is an accuracy judgement to the result that detects each time, guarantee the accuracy of testing result, and to the accuracy that real car function judges, simultaneously, be convenient for the tester to confirm the control circuit who breaks down fast, and maintain it. The first indicator light 5 and the second indicator light 6 are indicator lights of the same type and the same specification, including but not limited to three-color lights.
Referring to fig. 1 to 4, specifically, as the control circuit of the wire interrupt box described above, the secondary control circuit 7 includes: a first control switch 701 (shown as S1), a second control switch 702 (shown as S2), a power module, a first resistor 703 (shown as R1), and a second resistor 704 (shown as R2);
the first contact C1 of the first control switch 701 is connected to the first end (shown as a 1) of the first indicator light 5 and is connected to the high level (shown as VCC) of the power supply module through the first resistor 703; the second contact C2 and the third contact C3 of the first control switch 701 are both connected with the first connection end 1; the fourth contact C4 of the first control switch 701 is connected to the second connection 2; the fifth contact C5 of the first control switch 701 is connected to the low level of the power module;
the seventh contact C7 of the second control switch 702 is connected to the second end (as shown in a 2) of the first indicator light 5 and is connected to the high level of the power supply module through the second resistor 704; the eighth contact C8 and the ninth contact C9 of the second control switch 702 are connected to the third connection 3; the tenth contact C10 of the second control switch 702 is connected to the second connection 2; the eleventh contact C11 of the second control switch 702 is connected to the low level of the power module; the twelfth contact C12 of the second control switch 702 is connected with the sixth contact C6 of the first control switch 701;
the third end (shown as A3 in the figure) of the first indicator light 5 is connected with the high level of the power supply module;
the control end of the first control switch 701 and the control end of the second control switch 702 are both connected to the control port 4.
In the embodiment of the present invention, the first indicator light 5 and the second indicator light 6 are indicator lights of the same type and the same specification, taking a three-color light as an example:
referring to fig. 1, in the first sub-embodiment, when the control signal inputted from the control port 4 controls the second indicator light 6 to be in the off state, it is desirable that the control signal controls the fifth contact C5 of the first control switch 701 to be connected with the second contact C2, the sixth contact C6 to be connected with the fourth contact C4, the eleventh contact C11 of the second control switch 702 to be connected with the eighth contact C8, and the twelfth contact C12 to be connected with the tenth contact C10. The first connecting end 1 and the third connecting end 3 are both connected with the low level of the power module, the second connecting end 2 forms a loop, and the first end, the second end and the third end of the first indicator light 5 are connected with the high level of the power module and are in an off state. If the second state of the first indicator light 5 is actually the lighting state, that is, the states of the first indicator light 5 and the second indicator light 6 are not consistent, it is determined that the control signal fails when controlling the first control switch 701 and/or the second control switch 702, so that the control circuit does not perform corresponding operations according to the control signal, resulting in inaccurate detection result. The accuracy of testing result is guaranteed to the tester of being convenient for to and the accuracy to real car function judgement.
Referring to fig. 2, in the second sub-embodiment, when the control signal inputted from the control port 4 controls the second indicator light 6 to be in the state of lighting the first color, it is desirable to control the fifth contact C5 of the first control switch 701 to be connected with the first contact C1, the sixth contact C6 to be connected with the third contact C3, the eleventh contact C11 of the second control switch 702 to be connected with the eighth contact C8, the twelfth contact C12 to be connected with the tenth contact C10, so that the first connection terminal 1 and the second connection terminal 2 are connected to form a loop, the third connection terminal 3 is connected with the low level of the power module, when the second end and the third end of the first indicator light 5 are connected with the high level of the power module, and a second resistor 704 is arranged between the second end of the first indicator light 5 and the high level of the power module to divide the voltage between the second end and the third end of the first indicator light 5, thereby, the first indicator lamp 5 is turned on in the first color. If the first indicator light 5 is actually in an off state or in a state of lighting other colors, that is, the states of the first indicator light 5 and the second indicator light 6 are not consistent, it is determined that the control signal fails when controlling the first control switch 701 and/or the second control switch 702, so that the control circuit does not perform corresponding operations according to the control signal, and the detection result is inaccurate. The accuracy of testing result is guaranteed to the tester of being convenient for to and the accuracy to real car function judgement.
Referring to fig. 3, in the third sub-embodiment, when the control signal inputted from the control port 4 controls the second indicator light 6 to be in the state of lighting the second color, it is desirable to control the fifth contact C5 of the first control switch 701 to be connected with the second contact C2, the sixth contact C6 to be connected with the fourth contact C4, the eleventh contact C11 to be connected with the seventh contact C7, the twelfth contact C12 to be connected with the ninth contact C9, so that the second connection end 2 and the third connection end 3 are connected to form a loop, the first connection end 1 is connected with the low level of the power module, the first end and the third end of the first indicator light 5 are connected with the high level of the power module, and the first resistor 703 is arranged between the first end of the first indicator light 5 and the high level of the power module to divide the voltage between the first end and the third end of the first indicator light 5, and the first indicator lamp 5 is turned on in the second color. If the first indicator light 5 is actually in an off state or in a state of lighting other colors, that is, the states of the first indicator light 5 and the second indicator light 6 are not consistent, it is determined that the control signal fails when controlling the first control switch 701 and/or the second control switch 702, so that the control circuit does not perform corresponding operations according to the control signal, and the detection result is inaccurate. The accuracy of testing result is guaranteed to the tester of being convenient for to and the accuracy to real car function judgement.
Referring to fig. 4, in the fourth sub-embodiment, when the control signal inputted from the control port 4 controls the second indicator light 6 to be in the state of lighting the third color, it is desirable to control the fifth contact C5 of the first control switch 701 to be connected with the first contact C1, the sixth contact C6 to be connected with the third contact C3, the eleventh contact C11 to be connected with the seventh contact C7, and the twelfth contact C12 to be connected with the ninth contact C9, so that the first connection end 1 and the third connection end 3 are connected to form a loop, the second connection end 2 is connected with the low level of the power module, and the third end of the first indicator light 5 is connected with the high level of the power module, so that the first indicator light 5 is in the state of lighting the third color. If the first indicator light 5 is actually in an off state or in a state of lighting other colors, that is, the states of the first indicator light 5 and the second indicator light 6 are not consistent, it is determined that the control signal fails when controlling the first control switch 701 and/or the second control switch 702, so that the control circuit does not perform corresponding operations according to the control signal, and the detection result is inaccurate. The accuracy of testing result is guaranteed to the tester of being convenient for to and the accuracy to real car function judgement.
Referring to fig. 1 to 4, preferably, as described above for the control circuit of the power cutoff box, the secondary control circuit 7 further includes a third resistor 705 (shown as R3 in the figure) and a fourth resistor 706 (shown as R4 in the figure);
two ends of the third resistor 705 are connected to the fifth contact C5 and the low level of the power module, respectively;
both ends of the fourth resistor 706 are connected to the eleventh contact C11 and the low level of the power module, respectively.
In an embodiment of the present invention, a third resistor 705 disposed between the fifth contact C5 and the low level of the power module and a fourth resistor 706 disposed between the eleventh contact C11 and the low level of the power module are further included. When the first connection end 1 is connected with the low level of the power module through the second contact C2 and the fifth contact C5, the third resistor 705 plays a role in protection, and the first connection end 1 is prevented from being directly connected with the low level of the power module to damage the power module or the first connection end 1; similarly, when the third connection terminal 3 is connected to the low level of the power supply through the ninth contact C9 and the eleventh contact C11, the fourth resistor 706 plays a role in protection, and the third connection terminal 3 is prevented from being directly connected to the low level of the power supply module, so that the power supply module or the third connection terminal 3 is prevented from being damaged.
Specifically, as for the control circuit of the wire breaking box, the first control switch 701 and the second control switch 702 are both double-pole double-throw switches.
In the embodiment of the present invention, the first control switch 701 and the second control switch 702 are both double-pole double-throw switches, which is beneficial to saving cost on the premise of ensuring the connection function. The first control switch 701 and the second control switch 702 are preferably double-pole double-throw relays. It is within the scope of the present invention to use other types of control switches, such as double pole, triple throw switches, to implement the functions of the double pole, double throw switches described above.
Referring to fig. 5 to 7, another embodiment of the present invention also provides a wire break box, including: a box body 8 and a control circuit of the wire breaking box arranged in the box body 8;
the first indicator light group and the second indicator light group are arranged on the upper end face of the box body 8, the first indicator light group comprises at least one first indicator light 5, the second indicator light group comprises at least one second indicator light 6, and each first indicator light 5 and one second indicator light 6 are arranged correspondingly;
the first serial port, the second serial port 10, the third serial port 11, the control serial port 12, the power switch 13 and the power line interface 14 are arranged on the first side end face of the box body 8;
the power line interface 14 is used for connecting with an external power supply and supplying power to a power module of the control circuit;
the first serial port comprises at least one first connection end 1, the second serial port 10 comprises at least one second connection end 2, the third serial port 11 comprises at least one third connection end 3, and the control serial port 12 comprises at least one control port 4.
In the embodiment of the invention, the wire breaking box comprises a box body 8 and a control circuit of the wire breaking box arranged in the box body 8, and the control circuit judges the accuracy of the detection result by observing the state of each pair of corresponding first indicator lamp 5 and second indicator lamp 6 when the vehicle detection process is carried out, so that the accuracy of the whole detection result is ensured, and the inaccurate detection result caused by the fault of the wire breaking box and the error of the judgment of the real vehicle function caused by the inaccurate detection result are avoided. In the embodiment of the present invention, the specific arrangement manner of the first indicator light group and the second indicator light group is not specifically limited, but no matter what arrangement manner is adopted, each first indicator light 5 must be arranged corresponding to one second indicator light 6, and the arrangement manner includes: a first indicator light 5 is arranged adjacent to a corresponding second indicator light 6; and/or the relative position of a first indicator light 5 in the first indicator light group is the same as the relative position of a corresponding second indicator light 6 in the second indicator light group; and/or corresponding first and second indicator lights are labeled the same.
Specifically, as for the wire breaking box, the number of the first connection ends 1 in the first serial port, the number of the second connection ends 2 in the second serial port 10, the number of the third connection ends 3 in the third serial port 11, the number of the first indicator lamps 5 in the first indicator lamp group, and the number of the second indicator lamps 6 in the second indicator lamp group are all preset numbers.
In the embodiment of the invention, the preset number is 120, so that the wire breaking box can simultaneously carry out all detection in 120 channels, and the wire breaking box has high universality and is convenient to popularize and use. Other preset quantities are adopted according to actual conditions, for example: 90, 100, 130, etc. are within the scope of the present invention.
Referring to fig. 5 or fig. 6, further, as for the wire breaking box described above, a power indicator 15 and a system indicator 16 are further disposed on the upper end surface of the wire breaking box;
wherein, the power indicator 15 is connected with the power switch 13, and when the power switch 13 is in a switch-on state, the power indicator 15 is lighted;
the system indicator light 16 is connected with the control serial port 12, and when the control serial port 12 inputs a control signal, the system indicator light 16 is lightened.
The embodiment of the invention also comprises a power indicator lamp 15 connected with the power switch 13, and the power indicator lamp is lightened when the power switch 13 is in a connection state, so that a tester can intuitively determine whether the power-off wire box is connected with the power supply; and the system indicator lamp 16 is connected with the control serial port 12, so that a tester can visually determine whether the control signal is received by the wire breaking box.
Referring to fig. 5 to 7, in particular, as described above, the handle 17 is disposed on each of the second side end surface and the third side end surface of the box body 8, the second side end surface is disposed opposite to the third side end surface, and the second side end surface and the third side end surface are adjacent to the upper end surface and the first side end surface.
In the embodiment of the invention, the wire breaking box further comprises the handles 17 which are arranged oppositely, so that a tester can conveniently transport the wire breaking box, and the testing efficiency is improved.
An embodiment of the present invention also provides a vehicle detection system, including: the wire breaking box as described above.
In the embodiment of the invention, the vehicle detection system comprises the wire breaking box, the vehicle detection system can obtain the test data, and the accuracy of each test data is determined by observing the states of the first indicator lamp group and the second indicator lamp group on the wire breaking box, so that the accuracy of the final test data is ensured, and the accuracy of the function judgment of the real vehicle is further ensured.
Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A control circuit of a wire disconnection box, comprising: the device comprises a first connecting end (1), a second connecting end (2), a third connecting end (3), a control port (4), a first indicator light (5), a second indicator light (6) and a secondary control circuit (7);
the secondary control circuit (7) is respectively connected with the first connecting end (1), the second connecting end (2), the third connecting end (3) and the first indicator light (5);
the control port (4) is respectively connected with the control end of the second indicator light (6) and the control end of the secondary control circuit (7);
a control signal is input through the control port (4) to control the second indicator light (6) to be in a first state; the secondary control circuit (7) is controlled to control the connection relation among the first connection end (1), the second connection end (2) and the third connection end (3) so that the first indicator lamp (5) is in a second state, and when the first state is inconsistent with the second state, the control circuit is determined to be in a fault state;
the secondary control circuit (7) comprises: the power supply comprises a first control switch (701), a second control switch (702), a power supply module, a first resistor (703) and a second resistor (704);
a first contact (C1) of the first control switch (701) is connected with a first end of the first indicator light (5) and is connected with the high level of the power supply module through the first resistor (703); the second contact (C2) and the third contact (C3) of the first control switch (701) are both connected with the first connecting end (1); a fourth contact (C4) of the first control switch (701) is connected to the second connection (2); a fifth contact (C5) of the first control switch (701) is connected with the low level of the power supply module;
a seventh contact (C7) of the second control switch (702) is connected with the second end of the first indicator light (5) and is connected with the high level of the power supply module through the second resistor (704); an eighth contact (C8) and a ninth contact (C9) of the second control switch (702) are connected to the third connection (3); a tenth contact (C10) of the second control switch (702) is connected to the second connection (2); an eleventh contact (C11) of the second control switch (702) is connected to the low level of the power module; the twelfth contact (C12) of the second control switch (702) is connected with the sixth contact (C6) of the first control switch (701);
the third end of the first indicator lamp (5) is connected with the high level of the power supply module;
the control end of the first control switch (701) and the control end of the second control switch (702) are both connected with the control port (4).
2. The control circuit of the disconnection box according to claim 1, wherein the secondary control circuit (7) further comprises a third resistor (705) and a fourth resistor (706);
wherein, two ends of the third resistor (705) are respectively connected with the fifth contact (C5) and the low level of the power supply module;
both ends of the fourth resistor (706) are connected to the eleventh contact (C11) and the low level of the power module, respectively.
3. The control circuit of the wire breaking box according to claim 1, wherein the first control switch (701) and the second control switch (702) are both double-pole double-throw switches.
4. A wire break cassette, comprising: a box body (8) and a control circuit of the wire breaking box according to any one of claims 1 to 3 provided inside the box body (8);
the first indicator lamp group and the second indicator lamp group are arranged on the upper end face of the box body (8), the first indicator lamp group comprises at least one first indicator lamp (5), the second indicator lamp group comprises at least one second indicator lamp (6), and each first indicator lamp (5) and one second indicator lamp (6) are arranged correspondingly;
the first serial port, the second serial port (10), the third serial port (11), the control serial port (12), the power switch (13) and the power line interface (14) are arranged on the first side end face of the box body (8);
the power line interface (14) is used for being connected with an external power supply and supplying power to a power module of the control circuit;
the first serial port comprises at least one first connection end (1), the second serial port (10) comprises at least one second connection end (2), the third serial port (11) comprises at least one third connection end (3), and the control serial port (12) comprises at least one control port (4).
5. The wire breaking box according to claim 4, characterized in that the number of the first connecting ends (1) in the first serial port, the number of the second connecting ends (2) in the second serial port (10), the number of the third connecting ends (3) in the third serial port (11), the number of the first indicator lights (5) in the first indicator light group and the number of the second indicator lights (6) in the second indicator light group are all preset numbers.
6. The wire breaking box according to claim 4, characterized in that a power indicator lamp (15) and a system indicator lamp (16) are further arranged on the upper end face of the wire breaking box;
wherein, the power indicator (15) is connected with the power switch (13), and when the power switch (13) is in a switch-on state, the power indicator (15) is lightened;
and the system indicator lamp (16) is connected with the control serial port (12), and when the control serial port (12) inputs a control signal, the system indicator lamp (16) is lightened.
7. The breaking box according to claim 4, characterized in that a handle (17) is provided on each of a second side end face and a third side end face of the box body (8), the second side end face being disposed opposite to the third side end face, and the second side end face and the third side end face being adjacent to the upper end face and the first side end face.
8. A vehicle detection system, comprising: a disconnect box according to any one of claims 4 to 7.
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| CN201810523903.6A CN108760335B (en) | 2018-05-28 | 2018-05-28 | Control circuit of broken wire box, broken wire box and vehicle detecting system |
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| CN201810523903.6A CN108760335B (en) | 2018-05-28 | 2018-05-28 | Control circuit of broken wire box, broken wire box and vehicle detecting system |
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| CN108760335B true CN108760335B (en) | 2020-11-10 |
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