CN110365407A - It is a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal - Google Patents
It is a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal Download PDFInfo
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- CN110365407A CN110365407A CN201910652887.5A CN201910652887A CN110365407A CN 110365407 A CN110365407 A CN 110365407A CN 201910652887 A CN201910652887 A CN 201910652887A CN 110365407 A CN110365407 A CN 110365407A
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- power supply
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- optical transmitter
- signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Thermal Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electromagnetism (AREA)
- Power Sources (AREA)
Abstract
The invention discloses a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal, including MCU minimum system, dual power supply module, alternating current power-off signal generation module, signal acquisition module, temperature and humidity acquisition module, serial communication modular, fan ON/OFF control module, power supply switching module, system mode indicating module, SIM800 module and SIM card module, the MCU minimum system is separately connected dual power supply module, alternating current power-off signal generation module, signal acquisition module, temperature and humidity acquisition module, serial communication modular, fan ON/OFF control module, power supply switching module, system mode indicating module, SIM800 module and SIM card module, the present invention can detecte optical fiber link connectivity, the connectivity for the video camera ethernet link being connected with optical transmitter and receiver, light The communications status of the copper of fine link and the video camera being connected with optical transmitter and receiver, and communications status is sent to remote server by GPRS.
Description
Technical field
It is specifically a kind of using optical transmitter and receiver as the video monitoring of signal transmission terminal the present invention relates to technical field of video monitoring
Point failure diagnostor.
Background technique
Currently, social security situation is increasingly sophisticated, and traditional public security prevention and control measure has been difficult to meet current demand.For
This gives full play to the effect of video monitoring system using technology of Internet of things, promote Crime prevention and control system construction have become as
The effective measure of Imabari security protection control.
In recent years, China carries forward vigorously " bright as snow engineering " construction, and the quantity and covering surface of video surveillance point all increase sharply,
This proposes requirements at the higher level to the O&M of network.The original to be broken down according to the O&M experience of " bright as snow engineering ", video surveillance point
It is more that cause causes equipment to burn out including ageing equipment damage, thunder and lightning, high temperature causes equipment to crash, cut-off electric line etc. is dug in municipal works
Kind situation, and not only there are O&M company, also communications service provider, power supply company etc. in the responsible department being related to.Due to failure cause
It cannot obtain in time, often responsibility is indefinite in actual motion, leads to maintenance not in time, actually imitates to reduce " bright as snow engineering "
Fruit.
Therefore, in order to ensure the quality of " bright as snow engineering ", there is an urgent need to a set of fault diagnosis system, to grasp in time therefore
Hinder information, determine failure cause, so that clearly defining responsibilities department, effectively carries out Maintenance Scheduling work, solve failure problems in time, really
Monitoring network is protected to play a role.
Currently, being typically all to pass through ether using optical transmitter and receiver as the fault diagnosis device of the video surveillance network of signal transmission terminal
Network interface accesses video surveillance network, that is, diagnostor and video monitoring server, video camera exist together a local area network.Diagnosis
Device is connected to the method for letter by sending PING instruction testing respectively with each video camera to video monitoring server come diagnostic network event
Barrier.Drawback that there are two this methods considerably increases the consumption of IP address resource first is that diagnostor will occupy an IP address,
To greatly limit application of the technology in the system as " bright as snow engineering " this IP address resource anxiety.Second is that examining
Disconnected device and video surveillance network are in a network together, increase security risk.
Summary of the invention
The purpose of the present invention is to provide a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal,
To solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
It is a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal, including MCU minimum system, double electricity
Source power supply module, alternating current power-off signal generation module, signal acquisition module, temperature and humidity acquisition module, serial communication modular, fan
ON/OFF control module, power supply switching module, system mode indicating module, SIM800 module and SIM card module, the MCU is most
Mini system is separately connected dual power supply module, alternating current power-off signal generation module, signal acquisition module, humiture collection mould
Block, serial communication modular, fan ON/OFF control module, power supply switching module, system mode indicating module, SIM800 module and
SIM card module, temperature and humidity acquisition module detection terminal temperature signal is simultaneously transferred to MCU minimum system, when environment temperature is excessively high,
When deadlock occurs for optical transmitter and receiver and video camera, restarts system by cutting off the power system is made to restore normal, alternating current power-off signal
Generation module detection power-off signal is simultaneously transferred to MCU minimum system, and MCU also passes through fan ON/OFF control module control fan
Movement cools down.
As further technical solution of the present invention: the dual power supply module is by alternating current or battery dual power supply.
As further technical solution of the present invention: the MCU minimum system uses the conduct of STM32F103CB single-chip microcontroller
MCU。
As further technical solution of the present invention: the model SHT20 of the Temperature Humidity Sensor, using I2C interface
It is connected to MCU minimum system.
As further technical solution of the present invention: the port PA05 of the MCU drives light after triode Q3 reverse phase
Coupling TLP293 once triode Q3 reverse phase and carries out signal amplification rear-guard motor type relay Q1, realizes the ON/OFF control of fan.
As further technical solution of the present invention: the power supply switching module is realized by relay.
As further technical solution of the present invention: the dual power supply module includes dual power supply switching circuit, battery
Charging circuit, 5V power supply generative circuit and 2.8V power supply generative circuit.
Compared with prior art, the beneficial effects of the present invention are: the present invention can detecte optical fiber link connectivity and light end
The machine connected connectivity of video camera ethernet link, the copper of optical fiber link and the camera shooting being connected with optical transmitter and receiver
The communications status of machine, and communications status is sent to remote server by GPRS.
Detailed description of the invention
Fig. 1 is system architecture diagram of the invention；
The city Tu2Wei is electrically accessed with protection circuit, battery for being electrically accessed circuit diagram.
Fig. 3 is dual power supply switching circuit figure.
Fig. 4 is battery charger figure.
Fig. 5 is 5V power supply generative circuit figure.
Fig. 6 is 2.8V power supply generative circuit figure.
Fig. 7 is MCU minimum system circuit diagram.
Fig. 8 is serial communication modular figure.
Fig. 9 is alternating current power-off signal generation module figure.
Figure 10 is signal level shift circuit figure.
Figure 11 is signal acquisition module figure.
Figure 12 is signal level shift circuit figure.
Figure 13 is driving circuit figure.
Figure 14 is photoelectric isolation module circuit diagram.
Figure 15 is that power supply signal transmits isolation module circuit diagram.
Figure 16 is temperature and humidity acquisition module circuit diagram.
Figure 17 is fan ON/OFF control module circuit diagram.
Figure 18 is dump module circuit diagram.
Figure 19 is system mode indicating module circuit diagram.
Figure 20 is SIM card module circuit diagram.
Figure 21 is the schematic diagram that the present invention can be adapted to 1 light, 1 electric light terminal.
Figure 22 is the schematic diagram that the present invention can be adapted to 1 light, 2 electric light terminal.
Figure 23 is the schematic diagram that the present invention can be adapted to 1 light, 4 electric light terminal.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1: please referring to Fig. 1-2 3, a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis of signal transmission terminal
Device, including MCU minimum system, dual power supply module, alternating current power-off signal generation module, signal acquisition module, temperature and humidity are adopted
Collect module, serial communication modular, fan ON/OFF control module, power supply switching module, system mode indicating module, SIM800 mould
Block and SIM card module, temperature and humidity acquisition module detection terminal temperature signal is simultaneously transferred to MCU minimum system, when environment temperature mistake
Gao Shi when deadlock occurs for optical transmitter and receiver and video camera, restarts system system is made to restore normal by cutting off the power, alternating current power-off
Signal generation module detection power-off signal is simultaneously transferred to MCU minimum system, and MCU also passes through fan ON/OFF control module control wind
The movement of fan cools down.
Wherein, modules concrete function and structure are as follows:
Dual power supply module: this diagnostor can be by alternating current or battery dual power supply.When alternating current is normal, system by
Mains-supplied, while can charge the battery.In alternating current power-off, battery power supply is automatically switched to.Battery should be provided at least
1min continued power ability, it is ensured that alternating current power-off signal is sent to server by diagnostor.
1) city is electrically accessed with protection circuit, battery for being electrically accessed circuit
As shown, VCC_SW is externally input 12V power supply, which is that 220V alternating current turns through power supply adaptor
The 12V DC electricity changed into.VCC_BAT is cell output voltage, supply district 2.7-4.3V.VCC_SW and VCC_BAT warp
Single-pole double throw opens J11 and is respectively converted into VCC_POW and VCC_VBAT.
VCC_POW inhibits surge by self-recovery fuse FSMD110 and two transient supression diode SMBJ15A-TR
After electric current and high voltage transient, the mains-supplied source VCC_IN of more safety and stability is converted to.
Dual power supply switching circuit:
When alternating current normal power supply, VCC_IN 12V, generation system power supply VCC_OUT supply entire diagnostor system
It uses.When alternating current powers off, the VCC_VBAT from battery boosts to 11.6V output by 2 power management module SY7152, point
Merge not after Xiao Teqi diode D6, D8 and generates system power supply power supply VCC_OUT.D2, D6 and D8 play reverse-phase protection.
It is to make system power supply electric current >=2.5A to increase driving capability that No. 2 booster circuits are used in circuit.
Battery charger:
VCC_IN passes through TPS5430 power management module, and 12V voltage is reduced to 4.6V voltage, i.e. VCC_4.6V, VCC_
4.6V is about 4.0V using 2 Schottky diodes D11, D12 decompression and is connected to VCC_VBAT and charges the battery.And really
It protects charging voltage and is not higher than single lithium battery maximum voltage.
5V power supply generative circuit:
5V power supply is used to power to peripheral hardware, while for 2.8V power supply needed for generating MCU.As shown in Figure 10, VCC_OUT
After power management module TPS5430 decompression, VCC_5C is formed, exports 5V voltage.
2.8V power supply generative circuit:
VCC_5V generates 2.8V voltage after power management chip TLV62565DBVR decompression, exports through VCC_2.8V,
Electric power is provided for MCU, while being used for part peripheral hardware.
MCU minimum system:
This diagnostor is using STM32F103CB as MCU.The clock circuit of MCU, each pin outer signal are as shown in Figure 7.
Serial communication modular: serial communication modular is updated for parameter and system debug.TTL rs 232 serial interface signal and usb signal
Conversion chip uses CP2102.
Alternating current power-off signal generation module:
VCC_4.6V is generated after the low voltage difference power management module TPS73633 conversion with reverse-current protection
POWER_OK signal.When POWER_OK signal is high level, indicate that mains-supplied is normal, otherwise, alternating current may power off.
Signal acquisition module:
This module acquires diagnostic signal, and carries out necessary conversion to signal.The diagnostic signal of input include S1-S7 and
POWER_OK totally 8 signals.
1) external signal accesses
S1-S7 is usually provided by optical transmitter and receiver, is accessed by connector J1 outside diagnostor.S1-S7 is CMOS electricity
It is flat.
VCC_3.3V is the external power supply for being supplied to not circuit.The power supply is usually provided by external optical transmitter and receiver, and
It cannot be by the power supply of diagnostor.
VCC_3.3V is used as the power failure signal of optical transmitter and receiver simultaneously.When VCC_3.3V be low level, and POWER_OK believe
When number being also low level, then it can be confirmed and alternating current disconnection fault occur.
2) signal level conversion and driving circuit
For unified signal level and increase driving capability, S1-S7 passes through NOT gate (integrated package 74C04 and independent component
MMB3904 Y1-Y7 signal) is converted to.
Photoelectric isolation module:
POWER_OK comes from dual power supply module, for characterizing whether alternating current occurs disconnection fault.
Y1-Y7, POWER_OK and VCC_3.3V access the port I/O of MCU after optocoupler TLP293 isolation.Each letter
Number corresponding relationship are as follows:
Y1:PA07,
Y2:PB00/ADC_IN8
Y3:PB01/ADC_IN9
Y4:PA8/USART_CK
Y5:PB12/SPI2_NSS
Y6:PB13/SPI2_SCK
Y7:PB14/SPI2_MISO
VCC_3.3V/PA01
Optocoupler TLP293 is used for signal isolation, can further avoid the mutual crosstalk of diagnostor circuit and external circuit,
Increase anti-interference ability.SIG_GND and GND is respectively signal ground and diagnostor governor circuit, it is desirable that the two earth signals point
Fabric swatch is opened, to ensure that the governor circuit of signal circuit and diagnostor achievees the purpose that electrical isolation.
Fan ON/OFF control module:
The port PA05 of MCU drives optocoupler TLP293 after MMB904 reverse phase, once MMB3906 reverse phase and carries out signal
Amplify rear-guard motor type relay G5Q_14, realizes the ON/OFF control of fan.Relay G5Q_14 uses normally opened touching contact.
Dump module:
When environment temperature is excessively high, when deadlock occurs for optical transmitter and receiver and video camera, it can often pass through weight of cutting off the power
Starting system makes system restore normal.
The function of power cutting circuit is exactly then to re-close the dump of system, forces setting for whole system
It is standby, including optical transmitter and receiver and camera restart.
The working principle and fan control circuitry camera of the circuit.It is different when relay G5Q_14 use normally closed touching to touch
Point.
System mode indicating module:
This module provides two controllable light emitting diodes (green, blue) and is used to indicate system mode, is connected to
The port PB04 and PB07 of MCU.It is normal that one red light emitting diodes is used to indicate power supply.
SIM800 module:
Diagnostor uses SIM800 access to mobile network, is communicated by GPRS with Cloud Server.It is sharp between SIM800 and MCU
Use serial communication.
Embodiment 2: on the basis of embodiment 1: Temperature Humidity Sensor is connected to using SHT20 using I2C interface
The IC1 module of MCU.The sensor can accurately detect temperature and humidity signal.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal, including MCU minimum system, dual power supply
Power supply module, alternating current power-off signal generation module, signal acquisition module, temperature and humidity acquisition module, serial communication modular, fan
ON/OFF control module, power supply switching module, system mode indicating module, SIM800 module and SIM card module, which is characterized in that
The MCU minimum system is separately connected dual power supply module, alternating current power-off signal generation module, signal acquisition module, warm and humid
Spend acquisition module, serial communication modular, fan ON/OFF control module, power supply switching module, system mode indicating module,
SIM800 module and SIM card module, temperature and humidity acquisition module detection terminal temperature signal are simultaneously transferred to MCU minimum system, work as ring
Border when the temperature is excessively high, when deadlock occurs for optical transmitter and receiver and video camera, restarts system system is made to restore normal by cutting off the power,
Alternating current power-off signal generation module detection power-off signal is simultaneously transferred to MCU minimum system, and MCU also passes through fan ON/OFF control mould
The movement of block control fan cools down.
2. it is according to claim 1 a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal,
It is characterized in that, the dual power supply module is by alternating current or battery dual power supply.
3. it is according to claim 1 a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal,
It is characterized in that, the MCU minimum system is using STM32F103CB single-chip microcontroller as MCU.
4. it is according to claim 1 a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal,
It is characterized in that, the model SHT20 of the Temperature Humidity Sensor is connected to MCU minimum system using I2C interface.
5. it is according to claim 3 a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal,
It is characterized in that, the port PA05 of the MCU drives optocoupler TLP293 after triode Q3 reverse phase, simultaneously once triode Q3 reverse phase
It carries out signal and amplifies rear-guard motor type relay Q1, realize the ON/OFF control of fan.
6. it is according to claim 5 a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal,
It is characterized in that, the power supply switching module is realized by relay.
7. it is according to claim 5 a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal,
Be characterized in that, the dual power supply module include dual power supply switching circuit, battery charger, 5V power supply generative circuit and
2.8V power supply generative circuit.
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| CN201910652887.5A CN110365407A (en) | 2019-07-19 | 2019-07-19 | It is a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal |
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| CN201910652887.5A CN110365407A (en) | 2019-07-19 | 2019-07-19 | It is a kind of using optical transmitter and receiver as the video surveillance point fault diagnosis device of signal transmission terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904716A (en) * | 2021-10-26 | 2022-01-07 | 中国电信股份有限公司 | Optical communication fault detection device, system and method |
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| CN113904716A (en) * | 2021-10-26 | 2022-01-07 | 中国电信股份有限公司 | Optical communication fault detection device, system and method |
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Application publication date: 20191022 |