CN111445657B - Fire alarm detector convenient to encode and maintain - Google Patents
Fire alarm detector convenient to encode and maintain Download PDFInfo
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- CN111445657B CN111445657B CN202010377785.XA CN202010377785A CN111445657B CN 111445657 B CN111445657 B CN 111445657B CN 202010377785 A CN202010377785 A CN 202010377785A CN 111445657 B CN111445657 B CN 111445657B
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- 238000012423 maintenance Methods 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000011835 investigation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- 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
- H04B10/40—Transceivers
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- Physics & Mathematics (AREA)
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fire Alarms (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a fire alarm detector convenient for coding and maintenance, which comprises a detector base and a detector body, wherein the detector body is detachably connected with the detector base; the detector base is provided with an encoder, the encoder comprises a transmitting circuit, and the detector body is provided with a receiving circuit; when the detector body is arranged on the detector base, the receiving circuit is connected with the transmitting circuit, and the detector body can read the number set by the encoder through the connection of the receiving circuit and the transmitting circuit. The invention adopts the infrared emission and receiving tube with mature technology, uses the serial communication coding mode to transmit signals, places the coding element on the detector base which is not required to be replaced in general, so that the detector is not required to be numbered when the fire detector is maintained or replaced, only a new fire detector is required to be installed on the base, and the system still carries out numbering identification according to the original detector number; the coding circuit has small size, low power consumption, low cost and easy installation and debugging.
Description
Technical Field
The invention relates to the technical field of fire alarm monitoring and alarming, in particular to a fire alarm detector convenient for coding and maintenance.
Background
The fire alarm system must contain a detection end for identifying fire alarm, and fire alarm detection is realized by adopting a fire detector generally, and the fire alarm detector which is most applied at present and is convenient for coding and maintenance is a point type smoke detector and a point type temperature detector. In addition, in a fire alarm system, a plurality of fire detectors are generally included in a distributed manner, and in order for a host computer to recognize a fire alarm portion, the fire detectors must have a unique number. In the existing fire alarm system, the fire detector is generally connected with the host in a two-wire or two-bus mode, and in the application scene of industry or trains and the like, the detector is also connected with the host in a RS485 or CANBUS and other bus mode.
The two-wire system requires that each detector has two wires for communication with the host machine, and has the advantages that each fire detector corresponds to the port of the host machine one by one, so that the number of the fire detector is fixed, the number problem of the fire detector is not needed to be considered when a new fire detector is replaced, namely, once the fire detector is connected with the port of the host machine, the number of the fire detector is not influenced no matter the base or the body of the fire detector is replaced. This approach does not present a significant problem with fewer detectors, but when the number of detectors in the system is large, field wiring becomes difficult and the use of too many wires can also present a significant cost to the user.
The two-bus connection mode has the greatest advantage that fire detectors in one detection area can be all hung on one bus, and one detection area can be connected with 256 fire detectors. The fire detector in the area can be connected with the host computer by adopting a two-bus mode only by arranging a pair of communication wires on site, thereby greatly reducing the material cost and wiring man-hour and greatly saving the construction time and cost for installation companies and users.
The RS485 or CANBUS bus mode can also hang all detectors on one bus, one detection area can be connected with 256 fire detectors, and the two wiring modes have two more power lines than the two-bus mode, but have high transmission rate and large information quantity which can be transmitted.
Whether the fire detectors are in a two-bus connection mode or in a bus mode such as RS485 and CANBUS, the fire detectors cannot be automatically numbered except in a hand-in-hand (token ring) connection mode with high cost adopted by the RS485 or the CANBUS, each fire detector is required to be manually numbered before use, once the fire detectors are renumbered, the investigation is difficult, and especially most of the fire detectors are installed on a roof and a shielding part, so that the investigation difficulty is further increased. The number coding method of the existing bus connection type fire detector mainly adopts the modes of dial switches, wireless remote control, addressing of special addressing machines, card insertion and the like, but basically operates on the fire detector body, when the fire detector is maintained or replaced, the new detector needs to be addressed, and once the addressing is wrong, the whole system cannot work normally.
Disclosure of Invention
Aiming at the addressing problem of the bus fire detector, the invention provides a fire alarm detector which is convenient for coding and maintenance. The technical scheme of the invention is as follows:
The fire alarm detector convenient to encode and maintain comprises a detector base and a detector body, wherein the detector body is detachably connected with the detector base; the detector base is provided with an encoder, the encoder comprises a transmitting circuit, and the detector body is provided with a receiving circuit; when the detector body is mounted on the detector base, the receiving circuit is connected with the transmitting circuit, and the detector body can read the number set by the encoder through the connection of the receiving circuit and the transmitting circuit.
As a preferable technical scheme of the invention, the transmitting circuit is a wireless infrared transmitting circuit, and the receiving circuit is a wireless infrared receiving circuit.
Still further, wireless infrared transmitting circuit includes the transmitting tube, wireless infrared receiving circuit includes the receiver tube, when detector base and the installation of detector body are connected, the transmitting tube with the receiver tube counterpoint sets up.
Furthermore, the transmitting circuit comprises a dial switch, an MCU module and a transmitting tube, wherein the number of the encoder is set by the dial switch, and the encoder is processed and converted by the MCU module and then transmitted to the receiving circuit by the transmitting tube.
Further, the wavelength characteristics of the emitting tube and the receiving tube are the same, and the infrared wavelength is 760nm-1100nm.
Still further, be equipped with mainboard power supply buckle and encoder power supply buckle on the detector base, the power passes through the mainboard power supply buckle is supplied power for the detector mainboard in the detector body, passes through the encoder power supply buckle is supplied power for the encoder.
Furthermore, the included angle of the main board power buckle is different from the included angle of the encoder power buckle.
Furthermore, the main board power buckle is a nonpolar power buckle, and does not divide the positive electrode and the negative electrode.
Further, the on/off of the encoder power buckle is controlled by the detector main board.
Furthermore, the dial switch is an 8-bit dial switch, and 255 addressing can be performed in a binary mode.
The invention has the beneficial effects that:
The invention adopts the infrared emission and receiving tube with mature technology, uses the serial communication coding mode to transmit signals, places the coding element on the detector base which is not required to be replaced in general, so that the detector is not required to be numbered when the fire detector is maintained or replaced, only a new fire detector is required to be installed on the base, and the system still carries out numbering identification according to the original detector number; the infrared transmitting and receiving mode is adopted, the coding device is arranged on the base of the fire detector, the size of the coding circuit is small, the power consumption is low, the cost is low, and the installation and the debugging are easy. The specific advantages can be summarized as follows:
1. Thoroughly solves the problem that the new detector needs to be recoded when the fire detector is newly installed or replaced in the past;
2, no connecting wire is needed between the detector base and the detector body or accurate mechanical alignment pushing coding is carried out;
3. The encoder is fixed on the detector base, so that the repeated code condition of the on-site detector is greatly reduced;
4. the encoder is not worn when the detector is disassembled and assembled;
5. The accurate alignment of the base and the body is not dependent on accurate machining, so that the communication can be normal, the number of the detector can be correctly obtained, and the reliability of the detector coding in a vibration environment is greatly improved;
6. The infrared wireless transmitting and receiving is adopted, the infrared wireless transmitting and receiving device is insensitive to natural light, lamplight and other environmental light, and the anti-interference capability is strong;
7. the pure electronic circuit has low processing and production cost;
8. the encoder is installed by adopting a buckle, so that the maintenance is simple and convenient;
9. the method has no consumable and does not need to use a punching dialing piece, so that the condition that the dialing piece is carelessly installed in the field installation process or the dialing piece is wrongly punched to cause coding errors and the dialing piece is lost is avoided;
10. The device can be applied to smoke detectors, temperature detectors, smoke temperature composite detectors, temperature sensing cable modules, audible and visual alarms, manual alarm buttons and other module codes which need to be hung on buses in various bus communication modes such as two buses, RS485, CANBUS and the like.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a fire alarm detector of the present invention for facilitating coding and maintenance;
FIG. 2 is a schematic diagram of infrared communication between a transmitting circuit and a receiving circuit according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating binary settings of a dial switch according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an embodiment of a motherboard power buckle and an encoder power buckle disposed on a probe base.
Reference numerals: the detector comprises a detector base 1, a main board power buckle 11, an encoder power buckle 12, a detector body 2, a detector main board 21, an encoder 3, a dial switch 31, a transmitting tube 32 and a receiving tube 4.
Detailed Description
Examples:
the following detailed description of embodiments of the invention, taken in conjunction with the accompanying drawings, is evident in that the embodiments described are merely some, but not all embodiments of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1, a fire alarm detector convenient for coding and maintenance comprises a detector base 1 and a detector body 2, wherein the detector body 2 is detachably connected with the detector base 1; the detector base 1 is provided with an encoder 3, the encoder 3 comprises a transmitting circuit, and the detector body 2 is provided with a receiving circuit; when the detector body 2 is mounted on the detector base 1, the receiving circuit is connected with the transmitting circuit, and the number set by the encoder 3 can be read by the connection of the receiving circuit and the transmitting circuit by the detector body 2. The fire alarm detector convenient for coding and maintenance in this embodiment is applicable to fire alarm systems of two buses, RS485, CANBUS and other bus communication modes, where the number addressed by each encoder 3 is set to be the unique number in the fire alarm system during installation and setting, and when the detector body 2 is installed on the detector base 1, the detector body 2 is connected with the detector base 1 and provided with the encoder 3 and reads the addressing number as the number of the fire alarm detector convenient for coding and maintenance in the fire alarm system, so as to ensure the uniqueness of the detector number in the corresponding system. In the subsequent maintenance and update, only the detector body 2 is generally updated, the newly-accessed detector body 2 is connected to read the addressing of the encoder 3 on the corresponding detector base 1 as the number, and as the addressing of the encoder 3 is not changed, the newly-accessed detector body 2 can be accessed into the fire alarm system with the original unique number without coding operation, meanwhile, the uniqueness of the fire alarm detector number which is convenient for coding and maintenance after maintenance can be ensured, the maintenance work is reduced, and meanwhile, the correctness of the number is ensured.
As an embodiment of the present invention, the transmitting circuit and the receiving circuit are connected by adopting a wireless infrared communication manner, and in one embodiment, the transmitting circuit includes a dial switch 31, an MCU module and a transmitting tube 32, and the receiving circuit includes a receiving tube 4. When in use, the number of the encoder 3 is set through the dial switch 31, the MCU module transmits the converted number to the detector body 2 through the transmitting tube 32, and the detector body 2 receives the number through the receiving tube 4 and then uses the number as the unique number in the fire alarm system to execute normal monitoring operation. In this embodiment, the dial switch 31 is set by manual dial, referring to fig. 3, and 255 addressing can be performed by selecting the 8-bit dial switch 31, so as to meet the maximum number of loop devices in the fire alarm system. In practice, the settings may be dialed in a binary manner, such as 00000010 ("0" means switch is placed in "off" position, "1" means switch is placed in "on") means detector code is 2# detector, and so on.
In this embodiment, the transmitting tube 32 and the receiving tube 4 for infrared communication have the same wavelength characteristics for paired use, and the infrared wavelengths of both of them in this embodiment are selected to be 760nm to 1100nm. Referring to fig. 1, in order to better transmit communications, the transmitting tube 32 is aligned with the receiving tube 4, after the probe base 1 is fixedly installed and connected with the probe body 2, the transmitting tube 32 is located on the upper end surface of the probe base 1, and the receiving tube 4 is located on the lower end surface of the probe body 2, where the two positions are opposite, so as to ensure that the receiving tube 4 can receive the maximum signal, improve the anti-interference capability, and ensure the accuracy of the number.
As a way of this embodiment, the main board power supply buckle 11 and the power supply buckle 12 of the encoder 3 are provided on the probe base 1, the external power supply supplies power to the probe main board 21 in the probe body 2 through the main board power supply buckle 11 without polarity division, and the probe main board 21 supplies power to the encoder 3 on the base through the power supply buckle 12 of the encoder 3. In this embodiment, the design of error-proofing structure is adopted in mainboard power buckle 11 and encoder 3 power buckle 12, see fig. 4, contained angle between two buckles of encoder 3 power buckle 12 is A, contained angle between two buckles of mainboard power buckle 11 is B, and contained angle A's angle is less than contained angle B to guarantee that detector body 2 can correctly install on detector base 1 during the installation, only be in detector body 2 and detector base 1 correctly install the back, detector mainboard 21 can only get electric work, and through detector mainboard 21 self-checking work after normal, just supply power to encoder 3 by detector mainboard 21, further guarantee the safety of encoder 3, can not appear the problem that external power source misconnection encoder 3 was gone up.
As a preferred solution, the power on/off of the power buckle 12 of the encoder 3 is controlled by the detector main board 21, and when the detector main board 21 correctly reads the code of the encoder 3, the detector main board 21 turns off the power of the encoder 3, so as to reduce the power consumption of the whole system and ensure the safety of the encoder 3.
When the fire alarm detector convenient for coding and maintenance in the above embodiment is first installed, the dial switch 31 on the detector base 1 is set to be a designated code according to a construction drawing, after the detector main board 21 is correctly installed, the power buckle 12 of the encoder 3 is turned on after the detector main board 21 is electrified and is in a stable working state, the encoder 3 is electrified and enters a working state, the MCU module reads the number set by the dial switch 31, and sends the number to the receiving tube 4 through the transmitting tube 32 according to a specified communication protocol at a set time interval, the detector main board 21 demodulates and stores coding data into the detector main board 21 through a serial port after receiving the sent signal, and the power of the encoder 3 is turned off after verification is correct, so that the encoder 3 is in a non-working state, and then works by using the received code as the unique number in a fire alarm system. Since the number is determined by the dial switch 31 on the detector base 1, even if a new detector body 2 is replaced, the detector number at this position is not changed, and each time the detector body 2 is energized, the detector main board 21 reads the number set by the encoder 3 in this way, so that the uniqueness of the fire alarm detector code which is convenient for coding and maintenance is ensured.
The foregoing is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the claims. The invention is not limited to the above embodiments, the specific construction of which is susceptible to variations, in any case all of which are within the scope of the invention as defined in the independent claims.
Claims (7)
1. A fire alarm detector convenient for coding and maintenance, characterized in that: the detector comprises a detector base and a detector body, wherein the detector body is detachably connected with the detector base; the detector base is provided with an encoder, the encoder comprises a transmitting circuit, and the detector body is provided with a receiving circuit; when the detector body is arranged on the detector base, the receiving circuit is connected with the transmitting circuit, and the detector body can read the serial number set by the encoder through the connection of the receiving circuit and the transmitting circuit;
The detector base is provided with a main board power supply buckle and an encoder power supply buckle, the power supply supplies power to the main board of the detector in the detector body through the main board power supply buckle, and the encoder is supplied with power through the encoder power supply buckle;
the main board power supply buckle is a nonpolar power supply buckle;
the power on/off of the encoder power supply buckle is controlled by the detector main board.
2. A coded and maintained fire alarm detector according to claim 1, wherein: the transmitting circuit is a wireless infrared transmitting circuit, and the receiving circuit is a wireless infrared receiving circuit.
3. A coded and maintained fire alarm detector according to claim 2, wherein: the wireless infrared transmitting circuit comprises a transmitting tube, the wireless infrared receiving circuit comprises a receiving tube, and the transmitting tube and the receiving tube are arranged in alignment when the detector base is connected with the detector body in an installation mode.
4. A coded and maintained fire alarm detector according to any one of claims 1-3, wherein: the transmitting circuit comprises a dial switch, an MCU module and a transmitting tube, wherein the number of the encoder is set by the dial switch, and the encoder is processed and converted by the MCU module and is transmitted to the receiving circuit by the transmitting tube.
5. The code and maintenance facilitating fire alarm detector of claim 4, wherein: the wavelength characteristics of the emitting tube and the receiving tube are the same, and the infrared wavelength is 760nm-1100nm.
6. A coded and maintained fire alarm detector according to claim 1, wherein: the buckling included angle of the main board power buckle is different from the buckling included angle of the encoder power buckle.
7. The code and maintenance facilitating fire alarm detector of claim 4, wherein: the dial switch is an 8-bit dial switch, and 255 addressing can be performed in a binary mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010377785.XA CN111445657B (en) | 2020-05-07 | 2020-05-07 | Fire alarm detector convenient to encode and maintain |
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| CN202010377785.XA CN111445657B (en) | 2020-05-07 | 2020-05-07 | Fire alarm detector convenient to encode and maintain |
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| CN112933499B (en) * | 2021-03-05 | 2023-08-15 | 江西清华实业有限公司 | Intelligent fire extinguishing control module |
| CN115482647A (en) * | 2022-09-09 | 2022-12-16 | 国网黑龙江省电力有限公司牡丹江水力发电总厂 | Wireless radio frequency type shear pin alarm device |
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| CN212460744U (en) * | 2020-05-07 | 2021-02-02 | 广州市康创电子科技有限公司 | Fire alarm detector convenient to encode and maintain |
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| KR101391302B1 (en) * | 2012-07-03 | 2014-05-07 | (주)태산전자 | Addressable automatic fire alarm system |
| CN203812357U (en) * | 2014-03-13 | 2014-09-03 | 广东瑞德智能科技股份有限公司 | Wireless low power consumption smoke and temperature early warning circuit |
| CN105551172B (en) * | 2015-12-25 | 2017-09-29 | 苏州市康宏智能工程有限公司 | A kind of wireless fire-fighting detection device |
| CN109035670A (en) * | 2018-10-12 | 2018-12-18 | 湖北旭兴达科技有限公司 | A kind of fire alarm system and its address coding method |
| CN110349387A (en) * | 2019-07-12 | 2019-10-18 | 南京中消安全技术有限公司 | The addressing method of fire detection alarm system and wherein detector |
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| CN212460744U (en) * | 2020-05-07 | 2021-02-02 | 广州市康创电子科技有限公司 | Fire alarm detector convenient to encode and maintain |
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