CN205582181U - Multisensor combination formula electric fire control detector - Google Patents
Multisensor combination formula electric fire control detector Download PDFInfo
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- CN205582181U CN205582181U CN201620156917.5U CN201620156917U CN205582181U CN 205582181 U CN205582181 U CN 205582181U CN 201620156917 U CN201620156917 U CN 201620156917U CN 205582181 U CN205582181 U CN 205582181U
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Abstract
The utility model provides a be applicable to low -voltage distribution TT, the multisensor combination formula electric fire control detector of TN system, it comprises CPU module, panel module, power module. CPU module integration signal conditioning, analog -to -digital conversion, open and go into to leave, to communicate, to fall electric data storage and alarm instruction function, link to each other with power module, panel module. The utility model discloses the manifold occasion of sensor -based kind distribution and developing, the arbitrary combination configuration of residual current sensor channel and temperature sensor channel quantity can be carried out as required in the access of no. 4 sensors of the biggest support, has realized the configuration that stand alone type and non -independent formula multisensor made up formula electric fire detector. The utility model has the advantages of small, simple to operate, the configuration is nimble, measurement accuracy is high.
Description
Technical field
The invention belongs to electric fire alarm field, particularly relate to a kind of many sensings being applicable to low-voltage distribution TT, TN system
Device Combined electric appliance fire disaster monitoring probe.
Background technology
Electrical fire, as the term suggests, it is a kind of fire caused by electric fault.Detector for electric fire protection is at fire
Before calamity occurs, by the residual current of distribution line, electrical equipment is detected, and it is aided with temperature or other characteristic quantities
Change-detection, and report to the police the address of hidden danger and trouble location, such that it is able to find electric disaster hidden-trouble appropriate timely
Conduct oneself well reason.
Along with the development of national economy, electric fireproof is the most increasingly paid attention to by people.Relevant criterion has been promulgated in country and place successively
Or specification, strengthen the prevention to electrical fire.In view of electrical fire produces the complexity of process, it is difficult to the change from some amount
Change and judge simply, it is common that be the main detection coordinating temperature again with residual current detection, trouble point signal is comprehensively sentenced
Disconnected.This allows for multi sensor combination formula electrical fire-detector and has important practical significance.Existing multi sensor combination formula electricity
Channel selecting in gas fire hazard monitoring product typically uses the method for MUX multiway analog switch switching sensor signal, this mode
Sampling, analog-to-digital conversion rate low and MUX switching certainty of measurement is had interference.
Summary of the invention
For problems of the prior art, the present invention proposes a kind of multi sensor combination formula detector for electric fire protection,
It is applicable to low-voltage distribution TT, TN system, it is achieved that arbitrarily residual current sensor passage and the configuration of temperature sensor passage,
Stand alone type and the configuration feature of dependent formula multi sensor combination formula electrical fire-detector.Which is mainly characterized in that the most what time:
1, the configurable of residual current sensor and temperature sensor input is realized.
The monitoring detector of the present invention specifically includes that CPU module, panel module, power module.CPU module respectively with
Described power module, panel module are connected.
Integrated AD conversion unit in CPU module, AD conversion unit is believed with residual current signal condition unit and temperature respectively
Number conditioning unit is connected.CPU module also includes that ferroelectric storage cell, communication unit, On-off signal unit, switching value are defeated
Go out unit, LED indicating member, buzzer warning unit.
Residual current signal is converted to secondary AC signal by residual current signal condition unit, by filtering, amplify, offseting
After processing of circuit, become the acceptable signal of AD conversion unit, be linked into AD conversion unit.Residual current signal is adjusted
Reason unit includes 4 relatively independent loops.After temperature signal is converted to the signal of telecommunication by temperature signal regulation unit, through filtering
Ripple, amplification, be converted to AD conversion unit acceptable signal.Temperature signal regulation unit include 4 relatively independent
Loop.Ferroelectric storage cell realizes monitoring detector configuration data and the storage of current alerts data.Communication unit is by communication
Network insertion monitoring device, it is achieved with electric monitoring equipment or the communication of debugging software.On-off signal unit provides multichannel to open
Guan Liang, it is achieved the input of switching value and stabilization process, it is achieved fire-fighting link input and key-press input function, with panel module
Coordinate, it is achieved the human-computer interaction function of device.Switch amount output unit provides double switch amount, it is achieved report to the police output and dropout
Output function.Reporting to the police exports and thread off exports needs to enable according to the configuration of mode of operation and initialize.
Integrated 8 AD conversion unit of CPU module work alone, and can control respectively.According to the sensor type of configuration,
By starting or stoping corresponding AD conversion unit, it is achieved the combination input signal of different types of sensor passage can group
State configures.
Power module is provided with rectification circuit, and the input of this rectification circuit is connected with ac working power supply, outfan and CPU mould
Block connects.Multipath voltage regulation power supply is provided for CPU module.Panel module obtains working power by CPU module.
Panel module includes LCD display unit and push-button unit, and LCD display unit is with CPU module display control circuit even
Connecing, button is connected with the On-off signal unit in CPU.
2, the configurable of stand alone type and dependent formula is realized.
The monitoring detector of the present invention takes unified hardware configuration, can configure mode of operation according to requirement of engineering, it is achieved independent
Formula or the configuration of dependent formula multi sensor combination formula fire monitoring detector.LCD display, LED it is integrated with on this detector
Assembly necessary to the stand alone type fire monitoring detectors such as instruction, buzzer, fire-fighting link input and trip alarms output.?
Under dependent formula mode of operation, by the functions such as corresponding buzzer, fire-fighting link input and trip alarms output are forbidden,
Only carry out gathering of sensing data and necessary communicating；Under independent working mode, enable the function of appropriate section.
The beneficial effects of the present invention is: 1, the present invention follows strictly residual-current electrical fire detector and temp.-measuring type is electric
The national standard of fire monitoring detector, it is achieved that arbitrarily the joining flexibly of residual current sensor passage and temperature sensor passage
Put, and achieve the configuration feature of stand alone type and dependent formula multi sensor combination formula electrical fire-detector.
2, the present invention utilizes eight analog-converted unit that CPU module is integrated, it is achieved the full access of each channel signal, is carrying
The certainty of measurement that is switched to avoiding MUX while high sampling and analog-to-digital conversion rate brings interference.
3, the multi sensor combination formula detector for electric fire protection perfect in shape and function of the present invention, has taken into full account sampled data and place
The reason accuracy of data and real-time and the motility of engineer applied, to realizing and to promote electrical fire prevention significant.
Accompanying drawing explanation
Fig. 1 is the structural representation of detector for electric fire protection in the embodiment of the present invention.
Fig. 2 is the single channel residual current signal conditioning circuit of the embodiment of the present invention.
Fig. 3 is the single channel temperature signal regulation circuit of the embodiment of the present invention.
Fig. 4 is the configuration flow schematic diagram of detector for electric fire protection in the embodiment of the present invention.
Detailed description of the invention
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
1, structure specification
As it is shown in figure 1, multi sensor combination formula detector for electric fire protection, including CPU module, panel module, power module.
Panel module and power module are connected with CPU module by connector.CPU module includes residual current signal condition unit, temperature
Degree signal condition unit, AD conversion unit, ferroelectric storage cell, communication unit, On-off signal unit, output switch parameter
Unit, LED indicating member, buzzer warning unit etc. form.Power module is provided with rectification circuit, the input of this rectification circuit
End is connected with ac working power supply, and outfan is connected with CPU module.There is provided multipath voltage regulation voltage, to each module for power supply.Panel
Module includes that LCD display and push-button unit, LCD display are connected with the display control circuit of CPU module, push-button unit with
On-off signal unit in CPU connects.
Residual current transformer includes 4 relatively independent loops as shown in Figure 2, and residual current transformer is by residual current signal
Be converted to secondary AC signal, by filtering, amplifying, after the processing of circuit such as skew, become the acceptable letter of AD conversion unit
Number, it is linked into AD conversion unit.As it is shown on figure 3, after temperature signal is converted to the signal of telecommunication by temperature sensor, after filtering,
Amplify, be converted to AD conversion unit acceptable signal.Integrated 8 AD conversion unit of CPU module work alone, can
To control respectively.According to the sensor type of configuration, enable or stop corresponding AD conversion unit.Thus realize input signal
Configurable configuration.Ferroelectric storage cell realizes device configuration data and the storage of current alerts data.After system power failure is restarted,
Still current alarm logging and configuration information can be preserved.Communication unit uses RS485 universal serial bus to carry out communication, by communication
Network can be accessed by monitoring device.Communication unit realizes and electric monitoring equipment or the communication of debugging software.On-off signal unit with
Fire-fighting linkage system connects, it is achieved fire-fighting link function, uses the method such as software scans, software filtering, it is achieved switching value defeated
Enter and stabilization process, receive the key-press event from panel simultaneously, it is achieved device instruction input function, coordinate with panel module,
Realize the human-computer interaction function of device.Switch amount output unit includes report to the police output and output of threading off, report to the police output and output of threading off
Need to enable according to the configuration of mode of operation and initialize.
2, mode of operation explanation
On the basis of multi sensor combination formula detector for electric fire protection hardware designs, it is achieved residual current sensor and temperature
Configurable and the configurable functionality of mode of operation of degree sensor.Shown in idiographic flow as accompanying drawing 4.
After device energising starts, first initialize minimum system, from ferroelectric memory, then read configuration information, if configuration
Information is incorrect or does not exists, then reconfigure, until reading correct configuration information.It is then determined that the Working mould of device
Formula.If dependent mode of operation, then enter secondary and initialize, the function such as including communication, LED instruction, Display panel,
After configuration is good, the mode of operation of analog-digital converter is set further according to the sensor type of detector configuration.Subsequently into mastery routine
Circulation performs.If independent working mode, then enter secondary and initialize, on the basis of dependent mode of operation is initialized,
Adding report to the police and thread off output configuration, buzzer configuration etc., after configuration is good, the sensor type further according to detector configuration sets
Put the mode of operation of analog-digital converter.Perform subsequently into main program cycle.
The present invention is open the most as above with preferred embodiment, but they are not for limiting the present invention, any is familiar with this those skilled in the art,
Without departing from the spirit and scope of the invention, from when can making various changes or retouch, therefore protection scope of the present invention should
With being as the criterion that claims hereof protection domain is defined.
Claims (7)
1. a multi sensor combination formula detector for electric fire protection, it is characterised in that: include CPU module, power supply mould
Block, panel module；Described CPU module is connected with described power module, panel module respectively；Wrap in described CPU module
Include residual current signal condition unit, temperature signal regulation unit, AD conversion unit, ferroelectric storage cell, communication unit,
On-off signal unit, switch amount output unit；
Residual current signal is converted to AD conversion unit acceptable secondary AC letter by described residual current signal condition unit
Number, it is linked into described AD conversion unit；
After temperature signal is converted to the signal of telecommunication by described temperature signal regulation unit, being converted to described AD conversion unit can connect
The direct current signal being subject to, is linked into described AD conversion unit；
Described AD conversion unit is connected with described residual current signal condition unit and described temperature signal regulation unit；
Described ferroelectric storage cell is used for storing configuration data and current alerts data；
Described communication unit accesses monitoring device by communication network, it is achieved with electric monitoring equipment or the communication of debugging software；
Described On-off signal unit provides multi-way switching values, it is achieved the input of switching value, stabilization process, fire-fighting link is defeated
Enter and key-press input function；
Described switch amount output unit provides double switch amount, it is achieved report to the police output and dropout output function；
Described power module is provided with rectification circuit, the input incoming transport power supply of described rectification circuit, outfan and described CPU
Module connects；
Described panel module includes LCD display unit and push-button unit, described LCD display unit and described CPU module
Connecting, described push-button unit is connected with described On-off signal unit.
Multi sensor combination formula detector for electric fire protection the most according to claim 1, it is characterised in that: described
CPU module also includes LED indicating member, buzzer warning unit.
Multi sensor combination formula detector for electric fire protection the most according to claim 1 and 2, it is characterised in that: institute
State in CPU module integrated 8 to work alone, the described AD conversion unit that can control respectively, described AD conversion unit
It is connected with residual current signal condition unit and temperature signal regulation unit respectively, by starting or stoping corresponding described modulus
Converting unit, it is achieved the combination of different types of sensor passage.
Multi sensor combination formula detector for electric fire protection the most according to claim 1 and 2, it is characterised in that:
Hold the access less than No. 4 sensors, by starting or stoping corresponding described AD conversion unit, it is achieved described residue electricity
Stream signal condition unit, described temperature signal regulation unit channel quantity arbitrary disposition.
Multi sensor combination formula detector for electric fire protection the most according to claim 1 and 2, it is characterised in that: institute
State under the dependent formula mode of operation of multi sensor combination formula detector for electric fire protection, forbid buzzer warning unit, disappear
Anti-linkage input and output of threading off；Under the free-standing mode of operation of described multi sensor combination formula detector for electric fire protection,
Enable buzzer warning unit, fire-fighting link input and output of threading off.
Multi sensor combination formula detector for electric fire protection the most according to claim 1, it is characterised in that: described logical
Letter unit uses RS485 serial bus communication.
Multi sensor combination formula detector for electric fire protection the most according to claim 1, it is characterised in that: residue electricity
Stream signal condition unit includes 4 relatively independent loops；Temperature signal regulation unit includes 4 relatively independent loops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156917.5U CN205582181U (en) | 2016-03-01 | 2016-03-01 | Multisensor combination formula electric fire control detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156917.5U CN205582181U (en) | 2016-03-01 | 2016-03-01 | Multisensor combination formula electric fire control detector |
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| CN205582181U true CN205582181U (en) | 2016-09-14 |
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| CN201620156917.5U Active CN205582181U (en) | 2016-03-01 | 2016-03-01 | Multisensor combination formula electric fire control detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461278A (en) * | 2018-12-19 | 2019-03-12 | 杭州电子科技大学 | Intelligent electric fire monitoring system based on Internet of Things |
| CN112489349A (en) * | 2020-11-17 | 2021-03-12 | 山东众海智能科技有限公司 | Modular electric fire detector exempts from to work a telephone switchboard test load car |
-
2016
- 2016-03-01 CN CN201620156917.5U patent/CN205582181U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461278A (en) * | 2018-12-19 | 2019-03-12 | 杭州电子科技大学 | Intelligent electric fire monitoring system based on Internet of Things |
| CN112489349A (en) * | 2020-11-17 | 2021-03-12 | 山东众海智能科技有限公司 | Modular electric fire detector exempts from to work a telephone switchboard test load car |
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