CN210807531U - Switch loop detection device - Google Patents
Switch loop detection device Download PDFInfo
- Publication number
- CN210807531U CN210807531U CN201921960320.6U CN201921960320U CN210807531U CN 210807531 U CN210807531 U CN 210807531U CN 201921960320 U CN201921960320 U CN 201921960320U CN 210807531 U CN210807531 U CN 210807531U
- Authority
- CN
- China
- Prior art keywords
- switch
- loop
- detection
- led lamp
- branch road
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 58
- 230000005693 optoelectronics Effects 0.000 claims abstract description 7
- 210000000056 organ Anatomy 0.000 claims abstract description 3
- 239000007769 metal material Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Landscapes
- Keying Circuit Devices (AREA)
Abstract
The utility model relates to a switch loop detection device, including the casing, be provided with detection interface, starting switch, bee calling organ and LED lamp on the casing, detection interface is used for connecting the switch to receive the loop alarm signal of switch output, be provided with detection circuitry in the casing and provide power VDD's battery, detection circuitry includes first resistance, partial pressure branch road, electronic switch device and optoelectronic coupler. When the loop alarm signal output by the switch is a low level signal, the electronic switch device is switched off, so that the buzzer and the LED lamp do not operate; when the loop alarm signal output by the switch is a square wave signal, the electronic switch device is intermittently conducted, and then the buzzer and the LED lamp are intermittently operated. The switch loop detection device is of a pure hardware structure, and is not easily interfered by other signals compared with a mode of performing loop detection by a software method, so that the detection precision and reliability are improved.
Description
Technical Field
The utility model belongs to the technical field of the switch loop detects, especially, relate to a switch loop detection device.
Background
The switch may provide an exclusive electrical signal path for any two network nodes accessing the switch. The most common switches are ethernet switches, others are voice over telephone switches, fibre optic switches, etc.
The switch chip comprises a plurality of ports, and in practical application, the ports of the switch often have loop faults, such as: if any two ports are short-circuited, the switch generates a loop message, and the loop message is sent to the network. In general, the loop faults are classified into a single loop fault and a double loop fault. Once a switch physically forms a loop, it not only causes the loop port to work abnormally, but also causes the overall network performance to degrade. At present, the existing switch loop detection mode is generally a software mode, and loop detection is performed on a switch by a software method. However, the method of performing loop detection by a software method is susceptible to interference of other signals, which causes misjudgment of loop detection and has low reliability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a switch loop detection device for solve the problem that the reliability ratio is lower of the mode of carrying out loop detection through the software method.
In order to solve the problem, the utility model relates to a switch loop detection device adopts following technical scheme:
a switch loop detection device comprises a shell, wherein a detection interface, a starting switch, a buzzer and an LED lamp are arranged on the shell, and the detection interface is used for being connected with a switch so as to receive a loop alarm signal output by the switch;
be provided with detection circuitry in the casing and be used for providing power VDD's battery, detection circuitry includes first resistance, partial pressure branch road, electronic switch device and optoelectronic coupler, it passes through to detect the interface first resistance connection electronic switch device's control end, the power VDD end of battery passes through partial pressure branch road ground connection, the partial pressure end of partial pressure branch road is connected electronic switch device's control end, the power VDD end of battery passes through starting switch connects electronic switch device's input, electronic switch device's output passes through optoelectronic coupler's emitting diode ground connection, optoelectronic coupler's photosensitive triode bee calling organ with the LED lamp cluster is established on an alarm branch road, the power VDD end power supply of battery connects the alarm branch road.
Optionally, the electronic switching device is a triode.
Optionally, the voltage dividing branch is formed by connecting a second resistor and a third resistor in series, and a voltage dividing end of the voltage dividing branch is a connection point of the second resistor and the third resistor.
Optionally, the housing is made of a metal material.
Optionally, an access door is further disposed on the housing.
The utility model has the advantages as follows: when the ports of the switch are not in short circuit, namely, when no loop fault occurs, the loop alarm signal output by the switch is a low level signal, when any two ports of the switch are in short circuit, namely, when the loop fault occurs, the loop alarm signal output by the switch is a square wave signal, then, when the loop alarm signal output by the switch is a low level signal, the electronic switch device is switched off, no current flows through the light emitting diode of the photoelectric coupler, the light emitting diode is not bright, the phototriode of the photoelectric coupler is switched off, and the buzzer and the LED lamp do not run; when the loop alarm signal output by the switch is a square wave signal, the electronic switch device is intermittently conducted, so that the phototriode of the photoelectric coupler is intermittently conducted, and the buzzer and the LED lamp intermittently run. Therefore, whether the loop fault occurs in the switchboard can be visually detected through the buzzer and the LED lamp. The switch loop detection device is of a pure hardware structure, the switch loop fault detection is realized through the connection relation between circuit components, and compared with a mode of performing loop detection through a software method, the switch loop detection device is not easily interfered by other signals, so that the detection precision and reliability are improved. Moreover, a starting switch is arranged between the power supply VDD end of the storage battery and the input end of the electronic switch device in series, when loop detection is needed, the starting switch is operated to be conducted, and the power supply VDD end of the storage battery is supplied to the input end of the electronic switch device; when the switch loop detection device is idle, the starting switch is operated to turn off the switch, the power supply VDD end of the storage battery cannot supply the input end of the electronic switch device, the detection interface is prevented from being possibly switched on due to suspension, and therefore the buzzer and the LED lamp are prevented from running due to the fact that the phototriode of the photoelectric coupler is switched on, and the energy consumption of the storage battery can be reduced. In addition, relevant interfaces, operation devices and indication devices of the switch loop detection device are all arranged on the shell, operation is convenient, detection results can be visually obtained, the detection circuit is arranged in the shell, the detection circuit can be effectively protected through the protection effect of the shell, and damage to the detection circuit caused by external force is prevented.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described as follows:
fig. 1 is a schematic view of an appearance structure of the switch loop detection device of the present invention;
fig. 2 is a schematic circuit diagram of the switch loop detection device of the present invention.
Detailed Description
In order to make the technical purpose, technical solution and advantageous effects of the present invention clearer, the following provides a further description of the technical solution of the present invention with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the switch loop detection device includes a housing 1, in this embodiment, the housing 1 is a rectangular parallelepiped structure, and includes six panels, namely a front panel, a rear panel, an upper panel, a lower panel, a left panel, and a right panel.
The shell 1 is provided with a detection interface 2, a starting switch 3, a buzzer 5 and an LED lamp 4. In this embodiment, the detection interface 2, the start switch 3, the buzzer 5 and the LED lamp 4 are all disposed on the upper panel of the housing 1, which is convenient for operation. Of course, the detection interface 2, the start switch 3, the buzzer 5 and the LED lamp 4 may not be disposed on the same panel, and may be disposed on other panels as needed.
The detection interface 2 is used for connecting the switch to receive the loop alarm signal output by the switch, and then the detection interface 2 is connected with the loop alarm signal output end of the switch (i.e. the switch chip). The start switch 3 is a manual switch having two switch states, off and on, such as a rocker switch. The LED lamp 4 and the buzzer 5 are conventional devices. The detection interface 2, the starting switch 3, the buzzer 5 and the LED lamp 4 are all embedded on the upper panel of the shell 1.
In addition, in order to improve the service life of the housing 1 and prevent interference of external signals with internal circuits, the housing 1 is made of a metal material, such as iron. Moreover, in order to facilitate the inspection of the internal circuit, an access door 6 is further provided on the housing 1, and specifically, the access door 6 is provided on the right panel of the housing 1.
A detection circuit and a battery 11 for supplying a power supply VDD are provided inside the casing 1 (i.e., an inner space of the casing 1). As shown in fig. 2, the detection circuit includes a first resistor 7, a voltage dividing branch, an electronic switching device 10, and a photocoupler 12. In this embodiment, the voltage dividing branch is formed by connecting the second resistor 8 and the third resistor 9 in series, and the voltage dividing end of the voltage dividing branch is the connection point of the second resistor 8 and the third resistor 9. In this embodiment, the electronic switching device 10 is exemplified by a triode, specifically an NPN type triode, and certainly, a switching tube such as a MOS tube may be used.
The detection interface 2 is connected with a control end (namely, a base electrode of the triode) of the electronic switching device 10 through the first resistor 7, a power supply VDD end (namely, an electric energy output end of the storage battery 11) of the storage battery 11 is grounded through a voltage division branch, and the voltage division end of the voltage division branch is connected with the control end of the electronic switching device 10. The power supply VDD end of the storage battery 11 is connected with the input end of the electronic switch device 10 (namely the collector electrode of the triode) through the starting switch 3, the output end of the electronic switch device 10 (namely the emitter electrode of the triode) is grounded through the light emitting diode of the photoelectric coupler 12, the photosensitive triode, the buzzer 5 and the LED lamp 4 of the photoelectric coupler 12 are serially arranged on an alarm branch circuit, the power supply VDD end of the storage battery 11 is connected with the alarm branch circuit, namely, one end of the alarm branch circuit is connected with the power supply VDD end of the storage battery 11, and the other end of the alarm branch circuit is grounded. In addition, because grounding is required, the switch loop detection apparatus may further include a ground terminal, or other ports or devices capable of achieving grounding, which belongs to the conventional technology and is not described again.
The electrical parameters of the devices are determined according to actual needs.
When the switch loop detection device is used for detecting loop faults of the switch, the switch is connected with the detection interface 2, namely the detection interface 2 is connected with the loop alarm signal output end of the switch. When the switch is not short-circuited, that is, when no loop fault occurs, the loop alarm signal output by the loop alarm signal output end of the switch is a low-level signal; when any two ports of the switch are in short circuit, namely when a loop fault occurs, the loop alarm signal output by the loop alarm signal output end of the switch is a square wave signal. This part belongs to the conventional technology, and is referred to in the existing patent documents, such as the chinese utility model patent document with the publication number CN204948108U, and the details of this embodiment are not repeated.
Then, the start switch 3 is operated to turn on the start switch 3. Then, when the loop alarm signal output by the switch is a low level signal, the electronic switch device 10 is turned off, no current flows through the light emitting diode of the photoelectric coupler 12, the light emitting diode is not on, the phototriode of the photoelectric coupler 12 is turned off, the alarm branch is not turned on, the buzzer 5 and the LED lamp 4 are not operated, that is, the buzzer 5 does not send a sound signal, and the LED lamp 4 is turned off. When the loop alarm signal output by the switch is a square wave signal, the electronic switch device 10 is intermittently conducted, the light emitting diode of the photoelectric coupler 12 is intermittently lighted, the phototriode of the photoelectric coupler 12 is intermittently conducted, then, the alarm branch is intermittently conducted, and the buzzer 5 and the LED lamp 4 operate intermittently. Therefore, when the switch has no loop fault, the buzzer 5 and the LED lamp 4 do not operate; when the exchanger has a loop fault, the buzzer 5 and the LED lamp 4 operate intermittently. Therefore, whether the loop fault occurs in the switchboard can be visually detected by observing the running states of the buzzer 5 and the LED lamp 4.
Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating but not limiting the technical solution of the present invention, and any equivalent replacement and modification or partial replacement which do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.
Claims (5)
1. The switch loop detection device is characterized by comprising a shell, wherein the shell is provided with a detection interface, a starting switch, a buzzer and an LED lamp, and the detection interface is used for being connected with a switch so as to receive a loop alarm signal output by the switch;
be provided with detection circuitry in the casing and be used for providing power VDD's battery, detection circuitry includes first resistance, partial pressure branch road, electronic switch device and optoelectronic coupler, it passes through to detect the interface first resistance connection electronic switch device's control end, the power VDD end of battery passes through partial pressure branch road ground connection, the partial pressure end of partial pressure branch road is connected electronic switch device's control end, the power VDD end of battery passes through starting switch connects electronic switch device's input, electronic switch device's output passes through optoelectronic coupler's emitting diode ground connection, optoelectronic coupler's photosensitive triode bee calling organ with the LED lamp cluster is established on an alarm branch road, the power VDD end power supply of battery connects the alarm branch road.
2. The switch loop detect unit of claim 1, wherein said electronic switching device is a triode.
3. The switch loop detection device according to claim 1, wherein the voltage dividing branch is formed by connecting a second resistor and a third resistor in series, and a voltage dividing end of the voltage dividing branch is a connection point of the second resistor and the third resistor.
4. The switch loop detect unit of claim 1, wherein the housing is made of a metal material.
5. The switch loop detect unit of claim 1, wherein an access door is further provided on the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921960320.6U CN210807531U (en) | 2019-11-13 | 2019-11-13 | Switch loop detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921960320.6U CN210807531U (en) | 2019-11-13 | 2019-11-13 | Switch loop detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210807531U true CN210807531U (en) | 2020-06-19 |
Family
ID=71226309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921960320.6U Active CN210807531U (en) | 2019-11-13 | 2019-11-13 | Switch loop detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210807531U (en) |
-
2019
- 2019-11-13 CN CN201921960320.6U patent/CN210807531U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103311876A (en) | Power supply fuse alarming circuit and alarming device | |
| CN109709374A (en) | A kind of residual voltage detection circuit | |
| CN106569084B (en) | A kind of controllable characteristics load for the detection of cable wiring accuracy | |
| CN204269750U (en) | Diode open-circuit testing circuit | |
| CN210807531U (en) | Switch loop detection device | |
| CN208092205U (en) | A kind of closed-loop detection circuit for detecting relay output state | |
| CN105116200B (en) | A kind of detection circuit of compatible switch amount and level amount | |
| CN111736088B (en) | Power state indicating circuit | |
| CN104577961B (en) | Over-pressed power-off protecting circuit | |
| CN212410835U (en) | Detection circuit of AC input line and socket with the same | |
| CN208001364U (en) | A kind of two-way microphone automatic switch-over circuit | |
| CN106410743B (en) | A kind of power sense circuit and electronic product | |
| CN104124678A (en) | Lightning-protection isolator and lightning-protection isolating circuit | |
| CN212543407U (en) | Lithium battery protection board control circuit and lithium battery protection board | |
| CN115311795A (en) | Alarm device of power switch cabinet | |
| CN208580396U (en) | Data dump device and computer | |
| CN217240582U (en) | Direct dry contact input and voltage input circuit and signal circuit | |
| CN2859557Y (en) | Antistatic hand-loop self-checking unit | |
| CN111812553B (en) | AC input line detection circuit and socket having the same | |
| CN218102560U (en) | Discharging protection circuit of charging bin and charging bin | |
| CN217135177U (en) | Charging circuit and electronic product | |
| CN222070792U (en) | Emergency detection circuit and emergency detection device | |
| CN220492977U (en) | Output signal isolator of switching value input transistor | |
| CN210426896U (en) | Alternating current water leakage detection device and alternating current socket | |
| CN220190460U (en) | Interface protection circuit, interface protection device and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |