CN206990671U - A kind of subway Intelligent live detection means - Google Patents
A kind of subway Intelligent live detection means Download PDFInfo
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- CN206990671U CN206990671U CN201720634115.5U CN201720634115U CN206990671U CN 206990671 U CN206990671 U CN 206990671U CN 201720634115 U CN201720634115 U CN 201720634115U CN 206990671 U CN206990671 U CN 206990671U
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Abstract
The utility model discloses a kind of subway Intelligent live detection means, it mainly includes signal gathering unit, signal transfer unit, signal processing unit and display feedback unit, wherein signal gathering unit is gathering subway supply network voltage signal, and then pass through signal transfer unit, signal processing unit and display feedback unit transmit to the voltage signal, processing and display, and then subway power supply network power supply state is monitored in real time, a kind of subway Intelligent live detection means disclosed in the utility model has simple in construction, security is good, the advantages of accuracy of detection is high, a variety of occasions can be widely applicable to.
Description
Technical field
It the utility model is related to field of power detection, and in particular to a kind of subway Intelligent live detection means.
Background technology
Subway, as the term suggests refer to underground operation based on City Rail Transit System, the power supply system of the subway system
System is to carry out power Transmission by installing contact net (rail), the voltage circuit formed between contact net and locomotive walking rail,
In order to protect the personal safety of operation or service work personnel, must install charged display device has non-electric detection and police for voltage
Show.At present, it is actually rare suitable for the Intelligent live detection means of subway both at home and abroad, although the detection means of some association areas
A series of technological improvements can be passed through, it is applied to subway voltage detecting, but these equipment are often complicated, detection essence
Spend relatively low, be not suitable for subway special operation condition.Therefore, in the market needs a kind of subway Intelligent live detection means badly, realizes subway
The Intelligent Measurement of supply network.
Utility model content
In order to overcome above mentioned problem existing for prior art, the purpose of this utility model is, there is provided a kind of subway
Intelligent live detection means, solves the detection accurately and fast of existing subway power supply network.
A kind of subway Intelligent live detection means provided by the utility model, it includes：Signal gathering unit, signal transmission
Unit, signal processing unit and display feedback unit；
The signal gathering unit includes the primary side importation of a DC detecting sensor, the wherein detection sensor
It is connected by a DC fuse with subway power supply network positive pole and negative pole track；
Described signal transfer unit includes being sequentially connected filter amplification circuit, rectification amplifying circuit and analog-to-digital conversion electricity
Road；
The also detectable alternating voltage of the measuring device with electricity, measuring device with electricity also include change-over switch, exchanged in detection
During voltage, change-over switch is switched into alternating voltage test side；
Exchange detection sensor includes positive half-wave ac input circuit, and it includes sampling triode, block capacitor；With institute
State sampling transistor base connected base stage cut-in voltage control resistance and bypass diode；One block capacitor is series at described
Between the base stage and the signal input part that sample triode；The colelctor electrode of the sampling triode is connected to output load resistance；
Also include the negative half-wave ac input circuit of line construction identical of one and above-mentioned positive half-wave ac input circuit, its
In the block capacitor corresponding with the capacitor be series between base stage and the signal output part of sampling triode；
Signal output part is connected with signal processing unit (5)；
The display feedback unit (6) electrically connects with the signal processing unit (5), to be carried out to shown power supply state
Display screen is shown and alarm；
The display feedback unit (6) can show detected voltage species and voltage swing；
For the signal processing unit to receive the signal of process signal transfer unit transmission, it includes a central processing
Device and the memory to storage assembly；
The display feedback unit electrically connects with the signal processing unit, to carry out display screen to shown power supply state
Display and alarm.
Further, the signal processing unit is a single-chip microcomputer.
Further, the display feedback unit includes the display and alarm electrically connected with signal processing unit.
Further, the signal gathering unit is additionally provided with safety device.
Further, the single-chip microcomputer is PIC16F873.
Further, the single-chip microcomputer is C8051F340.
Further, in addition to a housing, whole each part of measuring device with electricity is arranged in housing, in the housing
The electro-magnetic screen layer that surface is provided with.
A kind of subway Intelligent live detection means provided by the utility model, its advantage are that the Intelligent live is examined
The blank that device solves existing subway power supply network detection field is surveyed, passes through signal gathering unit, signal transfer unit, signal
The matching coordinative effect of processing unit and display feedback unit, realize the quick accurate inspection of subway power supply network power supply state
Survey, there is the advantages of simple in construction, security is good, and accuracy of detection is high, a variety of occasions can be widely applicable to.
Brief description of the drawings
Fig. 1 is the utility model Intelligent live detection means operation principle schematic diagram.
Fig. 2 is the utility model Intelligent live detection means composition structural representation.
Fig. 3 is signal filter amplification circuit of the present utility model.
Fig. 4 is the PIC16F873 pin distribution maps that the utility model uses.
Marked in figure：
1. track；2. supply network positive pole；3. signal gathering unit；4. signal transfer unit；5. signal processing unit；6.
Show feedback unit.
Embodiment
With reference to the accompanying drawings, in conjunction with the embodiments, subway Intelligent live detection means provided by the utility model is carried out detailed
Thin explanation.
Embodiment
It includes：Signal gathering unit 3, signal transfer unit 4, signal processing unit 5 and display feedback unit 6；
The signal gathering unit 3 includes the primary side input unit of a DC detecting sensor, the wherein detection sensor
Lease making is crossed a DC fuse and is connected with subway power supply network positive pole 1 and negative pole track 2；
Described signal transfer unit 4 includes being sequentially connected filter amplification circuit, rectification amplifying circuit and analog-to-digital conversion electricity
Road；
For the signal processing unit 5 to receive the signal of process signal transfer unit transmission, it includes a centre
Manage device and the memory to storage assembly；
The display feedback unit 6 electrically connects with the signal processing unit 5, to be shown to shown power supply state
Screen display and alarm.
Further, the signal processing unit 5 is a single-chip microcomputer.
Further, the display feedback unit 6 includes the display and alarm electrically connected with signal processing unit.
Further, the signal gathering unit 3 is additionally provided with safety device.
Further, the single-chip microcomputer is PIC16F873.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, although the utility model is disclosed as above with preferred embodiment, but be not limited to the utility model, Ren Heben
Art personnel, do not departing from the range of technical solutions of the utility model, made when using the technology contents of the disclosure above
A little change or the equivalent embodiment for being modified to equivalent variations, as long as being without departing from the content of the technical scheme of the utility model, foundation
Any simple modification, equivalent change and modification that the technical essence of the utility model is made to above example, still fall within this
In the range of utility model technical scheme.
Claims (7)
1. a kind of subway Intelligent live detection means, it is characterised in that the measuring device with electricity includes：Signal gathering unit (3),
Signal transfer unit (4), signal processing unit (5) and display feedback unit (6)；
The signal gathering unit (3) includes the primary side input of a DC detecting sensor, wherein the DC detecting sensor
Part is connected by a DC fuse with subway power supply network (2) positive pole and negative pole (1)；
Described signal transfer unit (4) includes being sequentially connected filter amplification circuit, rectification amplifying circuit and analog to digital conversion circuit；
The also detectable alternating voltage of the measuring device with electricity, measuring device with electricity also includes change-over switch, in detection alternating voltage
When, change-over switch is switched into alternating voltage test side；
Exchange detection sensor includes positive half-wave ac input circuit, and it includes sampling triode, block capacitor；Taken with described
Sample transistor base connected base stage cut-in voltage control resistance and bypass diode；One block capacitor is series at the sampling
Between the base stage and signal input part of triode；The colelctor electrode of the sampling triode is connected to output load resistance；
Exchange detection means also include one with the line construction identical of above-mentioned positive half-wave ac input circuit bear half-wave exchange it is defeated
Enter circuit, wherein the block capacitor corresponding with the capacitor be series at sampling triode base stage and signal output part it
Between；
Signal output part is connected with signal processing unit (5)；
The display feedback unit (6) electrically connects with the signal processing unit (5), to show to detected voltage status
Display screen is shown and alarm；
The display feedback unit (6) can show detected voltage species and voltage swing；
For the signal processing unit (5) to receive the signal of process signal transfer unit (4) transmission, it includes a centre
Manage device and the memory to storage assembly.
2. subway Intelligent live detection means according to claim 1, it is characterised in that the signal processing unit (5)
For a single-chip microcomputer.
3. the subway Intelligent live detection means according to claims 1 or 2, it is characterised in that the display feedback
First (6) include the display and alarm electrically connected with signal processing unit.
4. subway Intelligent live detection means according to claim 1, it is characterised in that the signal gathering unit (3)
It is additionally provided with safety device.
5. subway Intelligent live detection means according to claim 2, it is characterised in that the single-chip microcomputer is
PIC16F873。
6. subway Intelligent live detection means according to claim 2, it is characterised in that the single-chip microcomputer is
C8051F340。
7. subway Intelligent live detection means according to claim 1, it is characterised in that also including a housing, entirely
Each part of measuring device with electricity is arranged in housing, the electro-magnetic screen layer that the shell inner surface is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720634115.5U CN206990671U (en) | 2017-06-02 | 2017-06-02 | A kind of subway Intelligent live detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720634115.5U CN206990671U (en) | 2017-06-02 | 2017-06-02 | A kind of subway Intelligent live detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206990671U true CN206990671U (en) | 2018-02-09 |
Family
ID=61390298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720634115.5U Active CN206990671U (en) | 2017-06-02 | 2017-06-02 | A kind of subway Intelligent live detection means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206990671U (en) |
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2017
- 2017-06-02 CN CN201720634115.5U patent/CN206990671U/en active Active
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: Road in Qixia District of Nanjing City, Jiangsu Province, No. 6 210000 Patentee after: China Construction Installation Group Co., Ltd. Address before: Road in Qixia District of Nanjing City, Jiangsu Province, No. 6 210000 Patentee before: China Construction Industrial Equipment Installation Co., Ltd. |