CN205427090U - Portable communications cable break -make testing arrangement - Google Patents
Portable communications cable break -make testing arrangement Download PDFInfo
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- CN205427090U CN205427090U CN201521029157.3U CN201521029157U CN205427090U CN 205427090 U CN205427090 U CN 205427090U CN 201521029157 U CN201521029157 U CN 201521029157U CN 205427090 U CN205427090 U CN 205427090U
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- 238000012360 testing method Methods 0.000 title claims abstract description 146
- 238000004891 communication Methods 0.000 title claims abstract description 100
- 238000001514 detection method Methods 0.000 claims abstract description 73
- 238000007689 inspection Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 15
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- 238000013102 re-test Methods 0.000 description 3
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Abstract
The utility model discloses a portable communications cable break -make testing arrangement. The device includes: power supply circuit, the test circuit of test sinle silk break -make, be connected with test circuit respectively, plug assorted detection signal output socket and detection signal reception socket with the communications cable detect the signal output socket and are used for being connected with the plug of communications cable one end, detect the signal reception socket and are used for being connected with the plug of the communications cable other end, the display circuit that shows sinle silk break -make state, being connected with test circuit and display circuit, sending the detected signal to every sinle silk through test circuit in proper order through detecting the signal output socket according to sinle silk sequence every time of presetting, pass through test circuit and detect the detected signal in order to confirm sinle silk break -make state through detecting the signal reception socket, the control display circuit shows the singlechip of sinle silk break -make state. The utility model provides a technical scheme can effectively improve the work efficiency who tests communications cable break -make.
Description
Technical field
This utility model relates to electronic technology field, particularly relates to a kind of portable communications cable on off test device.
Background technology
Along with the development of science and technology, communication and signal equipment quantity gets more and more, and QoS requirement is more and more higher.Due to the complex environment of job site, in work progress, signal transmission between communication and signal equipment, gather used by the multicore communications cable be susceptible to damage, fracture, the problem such as Miswire, thus affect communication between devices.And, once multicore order wire cable breaks down, and owing to distance is remote, do not have the reasons such as special detection tool, core quantity are many, is not easy to search trouble point.
In current technology, generally use circuit tester and sequentially turn on every core of the multicore communications cable.Connected the two ends of the multicore communications cable by circuit tester red and black test test pencil respectively, use the conducting shelves (or buzzing shelves) of circuit tester to measure, judge cable break-make situation by circuit tester reading (or buzzer).It is understood that workmen uses circuit tester to sequentially turn on this test mode of every core of the multicore communications cable, efficiency is the lowest.Additionally, if length of cable to be measured is long, need by using long wire, extended testing system test pencil p-wire length, test process need two testers (respectively at the two ends of the communications cable) by propagandaing directed to communicate or transmitter receiver, exact p-value result one by one, test is inconvenient for, and causes efficiency also ratio relatively low.
Therefore, currently used circuit tester sequentially turns on this test mode of every core of the multicore communications cable, and efficiency is the lowest, it is difficult to meets normal needs in actual condition and is rapidly completed the demand that the many communications cables carry out on off test.
Utility model content
In view of this, this utility model provides a kind of portable communications cable on off test device, it is possible to is effectively improved the work efficiency of test communications cable break-make, is relatively specific for needing to be rapidly completed the operating mode that the many communications cables carry out on off test.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of portable communications cable on off test device, the described communications cable includes that multiple core, described device include:
Power circuit；
Test the test circuit of described core break-make；
It is connected with described test circuit respectively, the detection signal output socket and the detection signal that match with the plug of the described communications cable receive socket, described detection signal output socket is for being connected with the plug of described communications cable one end, and described detection signal receives socket for being connected with the plug of the described communications cable other end；
The display circuit of display core on off operating mode；
It is connected with described test circuit and described display circuit, successively to each core detection signal is sent by described test circuit through described detection signal output socket every Preset Time according to core sequence, receive socket through described detection signal to determine core on off operating mode by detection signal described in described test electric circuit inspection, to control described display circuit and show the single-chip microcomputer of described core on off operating mode.
Preferably, described power circuit includes that power supply, described power supply are aneroid battery.
Preferably, described power circuit includes:
Mu balanced circuit, the filter circuit being connected with described mu balanced circuit, and the voltage detection circuit being connected with described filter circuit.
Preferably, described mu balanced circuit uses TPS61200 chip.
Preferably, described test circuit includes:
The the first test electronic circuit being connected with described single-chip microcomputer and described detection signal output socket；
The second test electronic circuit that socket is connected is received with described single-chip microcomputer and described detection signal；
Described first test electronic circuit and described second test electronic circuit include the shift register extending single-chip processor i/o mouth.
Preferably, described shift register uses 74LS164 chip.
Preferably, described display circuit includes:
The LED display circuit of display test mode, and the digital pipe display circuit of display fault wire heart yearn sequence.
Preferably, described LED display circuit includes:
Test mode display lamp, short trouble display lamp, off state display lamp and channel status display lamp.
Preferably, described digital pipe display circuit includes:
Charactron and the shift register being connected with described charactron.
Preferably, described single-chip microcomputer uses MSP430 single-chip microcomputer.
Understanding via above-mentioned technical scheme, compared with prior art, this utility model provides a kind of portable communications cable on off test device.The portable communications cable on off test device that this utility model provides, for the communications cable including multiple core is carried out on off test, this device includes: power circuit；Test the test circuit of described core break-make；It is connected with described test circuit respectively, the detection signal output socket and the detection signal that match with the plug of the described communications cable receive socket, described detection signal output socket is for being connected with the plug of described communications cable one end, and described detection signal receives socket for being connected with the plug of the described communications cable other end；The display circuit of display core on off operating mode；It is connected with described test circuit and described display circuit, detection signal is sent to each core every Preset Time successively by described test circuit according to core sequence, to determine core on off operating mode by detection signal described in described test electric circuit inspection, control described display circuit and show the single-chip microcomputer of described core on off operating mode.I.e., the technical scheme that application this utility model provides, detection signal output socket is connected with the plug of communications cable one end to be tested, detection signal is received socket be connected with the plug of the communications cable other end to be tested, single-chip microcomputer successively to each core sends detection signal every Preset Time by test circuit signal output socket after testing according to core sequence automatically, signal receives socket and detects signal described in test electric circuit inspection after testing, so that it is determined that core on off operating mode, control described display circuit and show described core on off operating mode.Therefore, the technical scheme that application this utility model provides, having only to primary connection just can the break-make of whole each core of the communications cable of disposable test, relative to prior art circuit tester and core by the scheme of root line re-test, efficiency is much higher, additionally, the technical scheme that this utility model provides, have only to a tester can complete, directly check test result by display circuit, relative to when the communications cable is the longest in prior art two testers by propagandaing directed to communicate or by the way of transmitter receiver exact p-value result, efficiency wants height.In sum, the technical scheme that this utility model provides, it is possible to be effectively improved the work efficiency of test communications cable break-make, be relatively specific for needing to be rapidly completed the operating mode that the many communications cables carry out on off test.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
The structure chart of a kind of portable communications cable on off test device that Fig. 1 provides for this utility model embodiment；
The structure chart of the filter circuit that Fig. 2 provides for this utility model embodiment；
The structure chart of the voltage detection circuit that Fig. 3 provides for this utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, with detailed description of the invention, prior art and this utility model are described in further detail below in conjunction with the accompanying drawings.
Embodiment
Refer to the structure chart of a kind of portable communications cable on off test device that Fig. 1, Fig. 1 provide for this utility model embodiment.Concrete, the described communications cable includes multiple core, as it is shown in figure 1, this portable communications cable on off test device, including:
Power circuit 101；
Test the test circuit 102 of described core break-make；
Being connected with described test circuit 102 respectively, the detection signal output socket 1031 and the detection signal that match with the plug of the described communications cable receive socket 1032；
Concrete, described detection signal output socket 1031 is for being connected with the plug of described communications cable one end, and described detection signal receives socket 1032 for being connected with the plug of the described communications cable other end；
The display circuit 104 of display core on off operating mode；
It is connected with described test circuit 102 and described display circuit 104, successively to each core detection signal is sent by described test circuit 102 through described detection signal output socket 1031 every Preset Time according to core sequence, receive socket 1032 through described detection signal and detect described detection signal to determine core on off operating mode by described test circuit 102, control described display circuit 104 and show the single-chip microcomputer 105 of described core on off operating mode；
Concrete, described core on off operating mode is channel status, off state or off state.
The technical scheme that application this utility model provides, detection signal output socket is connected with the plug of communications cable one end to be tested, detection signal is received socket be connected with the plug of the communications cable other end to be tested, single-chip microcomputer successively to each core sends detection signal every Preset Time by test circuit signal output socket after testing according to core sequence automatically, signal receives socket and detects signal described in test electric circuit inspection after testing, so that it is determined that core on off operating mode, control described display circuit and show described core on off operating mode.Therefore, the technical scheme that application this utility model provides, having only to primary connection just can the break-make of whole each core of the communications cable of disposable test, relative to prior art circuit tester and core by the scheme of root line re-test, efficiency is much higher, additionally, the technical scheme that this utility model provides, have only to a tester can complete, directly check test result by display circuit, relative to when the communications cable is the longest in prior art two testers by propagandaing directed to communicate or by the way of transmitter receiver exact p-value result, efficiency wants height.In sum, the technical scheme that this utility model provides, it is possible to be effectively improved the work efficiency of test communications cable break-make, be relatively specific for needing to be rapidly completed the operating mode that the many communications cables carry out on off test.
Optionally, the portable communications cable on off test device that this utility model embodiment provides, described power circuit 101 includes that power supply, described power supply are aneroid battery.It addition, the portable communications cable on off test device that this utility model embodiment provides, also include test switch.
Optionally, described single-chip microcomputer 105 uses MSP430 single-chip microcomputer.MSP430 single-chip microcomputer is referred to as mixed-signal processor, is owing to it is for practical application request, by integrated on a single die to analog circuit, digital circuit blocks and the microprocessor of multiple difference in functionalitys, to provide " single-chip microcomputer " solution.This series monolithic is applied in battery powered portable instrument more.MSP430 single-chip microcomputer has the following characteristics that disposal ability is strong, aboundresources and the development environment of convenience and high-efficiency in fast operation, super low-power consumption, sheet.
Optionally, owing to the running voltage of single-chip microcomputer 105 is 1.8V～3.6V, in order to ensure the steady operation of single-chip microcomputer, and the impact that test switch brings, the portable communications cable on off test device that this utility model embodiment provides, described power circuit 101 includes:
Mu balanced circuit, the filter circuit being connected with described mu balanced circuit, and the voltage detection circuit being connected with described filter circuit.
Optionally, described mu balanced circuit uses TPS61200 chip, and its running voltage is 0.3V～5.5V, and operating current maximum can bear 1800mA, and can reach the transformation efficiency of 90% in boost conversion, is fully able to meet the design requirement of the program.The main feature of TPS61200 series: efficiency high (when VIN >=1.2V, output 3.3V, output electric current 600mA, its efficiency can be more than 90%)；Size according to input voltage can be automatically converted into boost mode or decompression mode；Quiescent current little (less than 55 μ A)；Input voltage, when 0.5V, also can start work when full load；Input service voltage range width, from 0.3V～5.5V；The voltage that input low-voltage latches can set；There is output short circuit protection；There is output voltage to set and the kind of fixing output selects for user；There is energy saver mode when output is relatively low, efficiency can be improved；Likely force to press fixed efficiency work；When closing power supply, load disconnects with input；There is overtemperature protection；Operating temperature range-40～+85 DEG C；Small size 3mm × 3mmQFN encapsulation.
Concrete, refer to the structure chart of the filter circuit that Fig. 2, Fig. 2 provide for this utility model embodiment.As in figure 2 it is shown, regulated power supply uses the single channel fixing output LDOTPS76933 of TI company, output voltage is 3.3V, and output electric current representative value is 100mA, pressure reduction 38mV.
Concrete, refer to the structure chart of the voltage detection circuit that Fig. 3, Fig. 3 provide for this utility model embodiment.As it is shown on figure 3, the voltage at the resistance two ends by measuring load cell power Vcc, be used for monitoring cell voltage, reported to the police by light emitting diode time under-voltage, i.e. light emitting diode starts luminescence.
Optionally, the portable communications cable on off test device that this utility model embodiment provides, described test circuit 102 includes:
The the first test electronic circuit being connected with described single-chip microcomputer and described detection signal output socket；
The second test electronic circuit that socket is connected is received with described single-chip microcomputer and described detection signal；
Described first test electronic circuit and described second test electronic circuit include the shift register extending single-chip processor i/o mouth.
Optionally, described shift register uses 74LS164 chip.Assume that the communications cable to be measured has 32 cores, the most optional, 4 I/O of single-chip microcomputer MSP430 are expanded to 32 (i.e. by 4 shift registers by described first test electronic circuit, the every corresponding I/O of core), connect described detection signal output socket, it is connected with the plug of communications cable one end by described detection signal output socket, and receives the high level (described detection signal) that single-chip microcomputer exports to different cores every Preset Time successively according to core sequence.The plug of the communications cable other end receives socket with described detection signal and is connected, and described second test electronic circuit receives socket by described detection signal and gathers the high level of described detection signal, it is judged that the break-make of the concrete core of the communications cable.It is understood that corresponding with described first test electronic circuit, other 4 I/O of single-chip microcomputer MSP430 are expanded to 32 also by 4 shift registers by described second test electronic circuit, connect described detection signal and receive socket.
Concrete, the first test electronic circuit (i.e. detecting the output circuit part of signal) forms with the corresponding I/O mouth of 4 shift register 74LS164 and single-chip microcomputer MSP430.Two Enable Pins G1 of shift register 74LS164, G2 (Low level effective) are connected together as the sheet choosing of this sheet 74LS164, single-chip microcomputer MSP430 is connected by G1, G2 of tri-I/O mouths of P2.4, P2.5, P2.6, three 74LS164 respectively, thus realizes the sheet to this sheet 74LS164 and select.Four inputs of 74LS164 are connected with low four of the P0 mouth of single-chip microcomputer MSP430, single-chip microcomputer MSP430 is realized the 8 of 74LS164 selected the function of 1 by low four of P0 mouth, selected 74LS164 becomes low level according to the outfan of low four several corresponding sequence numbers sent of the P0 mouth of single-chip microcomputer MSP430, and remaining outfan is all high level.
Below the Cleaning Principle of short trouble is illustrated:
When carrying out open circuit detection: the P2 mouth first passing through single-chip microcomputer MSP430 chooses the sheet of first 74LS164 to select, by low four of the P0 mouth of single-chip microcomputer MSP430, first delivery outlet of first 74LS164 is become low level again, the most again by single-chip microcomputer MSP430 in order from first input port determine last one by one.If only first input port is low level, other input port is all high level, illustrates that the first core is normal.If also having other the X input port in addition to first input port is low level, illustrate that the first core and x-ray core occur in that short trouble.Detect First Line core and by input port, second delivery outlet of first 74LS164 has been become low level again, then repeat the detection process of First Line core.After having detected 16 wire cores, the sheet of second 74LS164 is chosen to be selected in the process of repetition first 74LS164 by the P2 mouth of single-chip microcomputer MSP430, after having detected 32 wire cores, the sheet of the 3rd 74LS164 is chosen to be selected in the process of repetition first 74LS164 by the P2 mouth of single-chip microcomputer MSP430.
Below the Cleaning Principle of open circuit fault is illustrated:
When carrying out open circuit detection: its process is just the same with open circuit detection, the P2 mouth first passing through single-chip microcomputer MSP430 chooses the sheet of first 74LS164 to select, by low four of the P0 mouth of single-chip microcomputer MSP430, first delivery outlet of first 74LS164 is become low level again, the most again by single-chip microcomputer MSP430 in order from first input port determine last one by one.If only first input port is low level, other input port is all high level, illustrates that the first core is normal.If first input port is high level, illustrate that the first core occurs in that short trouble.Detect the first core and by input port, second delivery outlet of first 74LS164 has been become low level again, then repeat the detection process of the first core.After having detected 16 cores, the sheet of second 74LS164 is chosen to be selected in the process of repetition first 74LS164 by the P2 mouth of single-chip microcomputer MSP430, after having detected 32 cores, the sheet of the 3rd 74LS164 is chosen to be selected in the process of repetition first 74LS164 by the P2 mouth of single-chip microcomputer MSP430.
Optionally, the portable communications cable on off test device that this utility model embodiment provides, described display circuit 104 includes:
LED (LightEmittingDiode, the light emitting diode) display circuit of display test mode, and the digital pipe display circuit of display fault wire heart yearn sequence.
Optionally, described LED display circuit includes:
Test mode display lamp, short trouble display lamp, off state display lamp and channel status display lamp, these four display lamps are LED.
Optionally, described digital pipe display circuit includes:
Charactron and the shift register being connected with described charactron.
Optionally, described digital pipe display circuit is made up of 4 charactrons and 4 shift registers, for showing the numbering of faulty line successively.For the group of four figures pipe display circuit (optional, the digital pipe display circuit that this utility model embodiment provides is four LED nixie displaies) in this device, in order to simplify circuit, reduce cost, have employed dynamic scanning displaying mode.So-called dynamic scanning displaying is exactly the residual effect utilizing human eye to vision, uses circulation bit by bit to light every charactron, and every display about 1ms, make human eye seem just looks like to show that different characters is the same simultaneously.So, it is achieved the dynamic scanning displaying of LED nixie display, in addition to providing display segment code to display, also display is carried out the control of position, the most usually said " section control " and " position control ".Therefore, for the interface circuit of four LED nixie displaies in this device, it is desirable to have two delivery outlets, one of them is used for output display segment encode；Another is used for carry-out bit control signal." position control " is actually the common port to LED nixie display and is controlled, and the number of position control signal is identical with the figure place of display.
Because design of the present utility model requires serial communication, I/O is the most not enough, so the display of this utility model design is lodged and selected information to be converted to parallel digital section series number section in a serial shift register 74LS164 to select information.Its principle is the serial port of MSP430 when working in mode 0, and serial line interface is synchronous shift register mode, and its baud rate is fixing, for the 1/12 of frequency of oscillation.Data are from the 10 pin Serial output of MSP430, the 11 pin output lock-out pulses of MSP430.Hardware circuit is connected as: connects together with 2 pins the 1 of 74LS164 and connects with 10 pins of MSP430, thus realize the transmission of data, 11 pins of MSP430 are connected with 8 pins of 74LS164 and send the control signal making the two synchronous working with clock pulse signal.9 pins of 74LS164 are directly connected with power supply, make 74LS164 perseverance in running order.The output of 74LS164 is with the eight of charactron section phase selections even, in order to light the corresponding section of charactron.Select as the position of Dynamic Announce by the in addition suitable drive circuit (having selected 6 reverser integrated device 74LS04 and PNP triode 9013 here) of P3.2, P3.3, P3.4, P3.5 of the P3 mouth of MSP430 simultaneously.
It is understood that the portable communications cable on off test device that this utility model embodiment provides, also including the reset circuit etc. of the peripheral circuit of single-chip microcomputer, such as single-chip microcomputer, these are common circuit, repeat no more.
It is understandable that, the portable communications cable on off test device that this utility model embodiment provides, can be with connecting test line between test circuit 102 and detection signal output socket 1031, test circuit 102 and detection signal receive between socket 1032 can also connecting test line, to adapt to the needs of different operating mode, when such as the communications cable is longer.
Understanding via above-mentioned technical scheme, compared with prior art, this utility model provides a kind of portable communications cable on off test device.The portable communications cable on off test device that this utility model provides, for the communications cable including multiple core is carried out on off test, this device includes: power circuit；Test the test circuit of described core break-make；It is connected with described test circuit respectively, the detection signal output socket and the detection signal that match with the plug of the described communications cable receive socket, described detection signal output socket is for being connected with the plug of described communications cable one end, and described detection signal receives socket for being connected with the plug of the described communications cable other end；The display circuit of display core on off operating mode；It is connected with described test circuit and described display circuit, detection signal is sent to each core every Preset Time successively by described test circuit according to core sequence, to determine core on off operating mode by detection signal described in described test electric circuit inspection, control described display circuit and show the single-chip microcomputer of described core on off operating mode.I.e., the technical scheme that application this utility model provides, detection signal output socket is connected with the plug of communications cable one end to be tested, detection signal is received socket be connected with the plug of the communications cable other end to be tested, single-chip microcomputer successively to each core sends detection signal every Preset Time by test circuit signal output socket after testing according to core sequence automatically, signal receives socket and detects signal described in test electric circuit inspection after testing, so that it is determined that core on off operating mode, control described display circuit and show described core on off operating mode.Therefore, the technical scheme that application this utility model provides, having only to primary connection just can the break-make of whole each core of the communications cable of disposable test, relative to prior art circuit tester and core by the scheme of root line re-test, efficiency is much higher, additionally, the technical scheme that this utility model provides, have only to a tester can complete, directly check test result by display circuit, relative to when the communications cable is the longest in prior art two testers by propagandaing directed to communicate or by the way of transmitter receiver exact p-value result, efficiency wants height.In sum, the technical scheme that this utility model provides, it is possible to be effectively improved the work efficiency of test communications cable break-make, be relatively specific for needing to be rapidly completed the operating mode that the many communications cables carry out on off test.
It addition, in existing technology, the one or both ends of the communications cable the most to be tested have connected plug, at this moment, by the mode of circuit tester test, it has to pull down plug and more every core is tested, be easily damaged the communications cable, affect communications cable quality.And the technical scheme that this utility model provides, directly it is connected the plug of the communications cable with the socket matched with communications cable plug, it is not necessary to dismounting plug, therefore reliability is high, does not interferes with communications cable quality.
It addition, in existing technology, with circuit tester by the technology of root test communications cable core break-make, because core is more, test process is easily obscured, therefore, is easily caused last test result and is inaccurate.And the technical scheme that this utility model provides, by expansion I/O mouth, the every corresponding I/O of core meeting, test each core successively according to core sequence, and each independent, it is independent of each other, therefore test result is relatively more accurate, does not haves the situation obscuring core.Additionally, in prior art, when the communications cable is longer, it may be necessary to two people lay respectively at the two ends of the communications cable, two people are by propagandaing directed to communicate or transmitter receiver circular test case, the situations such as one people mishears likely occur, thus test result misregistration etc. occurs, and the portable communications cable on off test device that this utility model provides, it is only necessary to one man operation, this people observes the core on off operating mode that display circuit shows simultaneously, and reliability and accuracy are much higher.In sum, the portable communications cable on off test device that this utility model provides, the accuracy of test is the highest, thus reliability is higher.
Finally, it can further be stated that, in this article, the relational terms of such as first and second or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation or sequentially that there is any this reality between these entities or operation.And, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of described key element, method, article or equipment.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this utility model.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (9)
1. a portable communications cable on off test device, the described communications cable includes multiple core, it is characterised in that including:
Power circuit；
Test the test circuit of described core break-make；
It is connected with described test circuit respectively, the detection signal output socket and the detection signal that match with the plug of the described communications cable receive socket, described detection signal output socket is for being connected with the plug of described communications cable one end, and described detection signal receives socket for being connected with the plug of the described communications cable other end；
The display circuit of display core on off operating mode；
It is connected with described test circuit and described display circuit, successively to each core detection signal is sent by described test circuit through described detection signal output socket every Preset Time according to core sequence, receive socket through described detection signal to determine core on off operating mode by detection signal described in described test electric circuit inspection, to control described display circuit and show the single-chip microcomputer of described core on off operating mode；
Described test circuit includes:
The the first test electronic circuit being connected with described single-chip microcomputer and described detection signal output socket；
The second test electronic circuit that socket is connected is received with described single-chip microcomputer and described detection signal；
Described first test electronic circuit and described second test electronic circuit include the shift register extending single-chip processor i/o mouth.
Portable communications cable on off test device the most according to claim 1, it is characterised in that described power circuit includes that power supply, described power supply are aneroid battery.
Portable communications cable on off test device the most according to claim 1 and 2, it is characterised in that described power circuit includes:
Mu balanced circuit, the filter circuit being connected with described mu balanced circuit, and the voltage detection circuit being connected with described filter circuit.
Portable communications cable on off test device the most according to claim 3, it is characterised in that described mu balanced circuit uses TPS61200 chip.
Portable communications cable on off test device the most according to claim 1, it is characterised in that described shift register uses 74LS164 chip.
Portable communications cable on off test device the most according to claim 1, it is characterised in that described display circuit includes:
The LED display circuit of display test mode, and the digital pipe display circuit of display fault wire heart yearn sequence.
Portable communications cable on off test device the most according to claim 6, it is characterised in that described LED display circuit includes:
Test mode display lamp, short trouble display lamp, off state display lamp and channel status display lamp.
Portable communications cable on off test device the most according to claim 6, it is characterised in that described digital pipe display circuit includes:
Charactron and the shift register being connected with described charactron.
Portable communications cable on off test device the most according to claim 1, it is characterised in that described single-chip microcomputer uses MSP430 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029157.3U CN205427090U (en) | 2015-12-10 | 2015-12-10 | Portable communications cable break -make testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029157.3U CN205427090U (en) | 2015-12-10 | 2015-12-10 | Portable communications cable break -make testing arrangement |
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| Publication Number | Publication Date |
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| CN205427090U true CN205427090U (en) | 2016-08-03 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656261A (en) * | 2016-11-24 | 2017-05-10 | 国网新疆电力公司乌鲁木齐供电公司 | Electric-power-communication dedicated combined-type 2M test device |
| CN107064713A (en) * | 2017-03-22 | 2017-08-18 | 南京南瑞继保电气有限公司 | A kind of electric line broken string method of discrimination and system |
| CN109814017A (en) * | 2017-11-20 | 2019-05-28 | 国网上海市电力公司 | The IGBT on off operating mode detection circuit and its detection method of three-phase phase-change switch and application |
| CN112213669A (en) * | 2020-09-08 | 2021-01-12 | 河南中光学集团有限公司 | Cable conduction automatic testing device based on MSP430 singlechip |
| CN112462299A (en) * | 2020-10-20 | 2021-03-09 | 云南电网有限责任公司昆明供电局 | Portable relay protection secondary open-loop wireless verification device |
| CN112557964A (en) * | 2020-12-02 | 2021-03-26 | 中国南方电网有限责任公司超高压输电公司梧州局 | Portable 2M line detection device |
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2015
- 2015-12-10 CN CN201521029157.3U patent/CN205427090U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656261A (en) * | 2016-11-24 | 2017-05-10 | 国网新疆电力公司乌鲁木齐供电公司 | Electric-power-communication dedicated combined-type 2M test device |
| CN107064713A (en) * | 2017-03-22 | 2017-08-18 | 南京南瑞继保电气有限公司 | A kind of electric line broken string method of discrimination and system |
| CN109814017A (en) * | 2017-11-20 | 2019-05-28 | 国网上海市电力公司 | The IGBT on off operating mode detection circuit and its detection method of three-phase phase-change switch and application |
| CN112213669A (en) * | 2020-09-08 | 2021-01-12 | 河南中光学集团有限公司 | Cable conduction automatic testing device based on MSP430 singlechip |
| CN112462299A (en) * | 2020-10-20 | 2021-03-09 | 云南电网有限责任公司昆明供电局 | Portable relay protection secondary open-loop wireless verification device |
| CN112557964A (en) * | 2020-12-02 | 2021-03-26 | 中国南方电网有限责任公司超高压输电公司梧州局 | Portable 2M line detection device |
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