CN203433356U - Combustible gas alarm controller - Google Patents
Combustible gas alarm controller Download PDFInfo
- Publication number
- CN203433356U CN203433356U CN201320566883.3U CN201320566883U CN203433356U CN 203433356 U CN203433356 U CN 203433356U CN 201320566883 U CN201320566883 U CN 201320566883U CN 203433356 U CN203433356 U CN 203433356U
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- combustible gas
- main control
- control unit
- alarm controller
- controller
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Abstract
The utility model relates to a combustible gas alarm controller comprising a housing, a main control unit, a power supply unit and a button-pressing processing unit. The main control unit, the power supply unit and the key processing unit are arranged inside the housing; the main control unit and the power supply are connected by a contact pin and a socket; and the main control unit is connected with the key processing unit by a contact pin and a flat cable. Besides, a display window is arranged at the upper surface of the housing; and the main control unit is arranged below the display window. The main control unit includes a microprocessor, a storage unit, and a bus communication and a detection circuit, wherein the storage unit and the bus communication and the detection circuit are connected with the microprocessor. With the combustible gas alarm controller having the structure, the controller is compatible to three-wire system and four-wire system buses and has the functions of identification of the point number of an external detector and automatic shielding; compatibility and maintainability of the controller can be improved. Moreover, the controller with the simple structure and low cost has the wide application range.
Description
Technical field
The utility model relates to combustible gas alarm field, relates in particular to alarm controller for combustible gas base structure field, specifically refers to a kind of alarm controller for combustible gas base.
Background technology
At present, the communication modes each other of various comparatively typical alarm controller for combustible gas bases and detector is all to adopt single three-wire system or four-wire system mode.Owing to having adopted single three-wire system or four-wire system mode, cause compatible badly, and client need to combine closely while ordering goods engineering wiring on-the-spot, if because order mistake or field wiring mistake, just need to return factory and process, cause a large amount of human and material resources and temporal waste.
The outer number of contacts of alarm controller for combustible gas base on the market is all fixedly installed in addition, cannot in certain scope, according to the actual access quantity of detector, carry out Lookup protocol, causes the dilatation in later stage inconvenient.
Utility model content
The purpose of this utility model is the shortcoming that has overcome above-mentioned prior art, provides a kind of and can realize compatible three-wire system and four-wire system bus, can count according to external detector quantity Lookup protocol, simple and compact for structure, the alarm controller for combustible gas base that has wide range of applications.
To achieve these goals, alarm controller for combustible gas base of the present utility model has following formation:
This alarm controller for combustible gas base, its principal feature is, the main control unit that described controller comprises housing and is arranged at described enclosure interior, power supply unit and keystroke handling unit, described main control unit is connected with socket by contact pin with described power supply unit, described main control unit is connected with described keystroke handling unit with winding displacement by contact pin, described housing upper surface offers display window, described main control unit is arranged at the below of described display window, described main control unit comprises the storage unit that microprocessor is connected with microprocessor with described, bus communication and testing circuit.
Preferably, described storage unit is EEPROM (Electrically Erasable Programmable Read Only Memo).
More preferably, described microprocessor is connected with described storage unit with I2C interface by SPI.
Preferably, described controller also comprises liquid crystal display, and described liquid crystal display is connected with described microprocessor.
More preferably, described main control unit also comprises liquid crystal display control circuit and LCD backlight control circuit, and described liquid crystal display control circuit is connected with described liquid crystal display with LCD backlight control circuit.
Preferably, described power supply unit comprises that respectively the switch between alternating current and standby battery circuit, the active and standby electricity that are connected with described main control unit discharge and recharge testing circuit, main electric treatment circuit, standby electric treatment circuit, relay and fault logic circuits and undervoltage warning circuit.
Preferably, described keystroke handling unit is capacitance type touch key control module.
Preferably, described housing is ABS plastic box, and described housing upper surface is provided with several water joints.
Preferably, described controller also comprises the hummer being arranged on described housing, and described hummer is connected with described microprocessor.
Adopt the alarm controller for combustible gas base in this utility model, there is following beneficial effect:
Adopted the alarm controller for combustible gas base of this utility model, make this alarm controller for combustible gas base can compatible three-wire system and four-wire system bus, and having the external detector of identification counts, the function of energy automatic shield, during later stage alarm control system dilatation, client can directly increase surely new detector, controller need not be returned to factory's upgrading or again buy controller; If client is not because corresponding the going up of product line system of engineering wiring and actual purchase in addition, without rewiring or customize new product yet; This product is directly compatible three-wire system and four-wire system signal, does not affect execution cycle of whole system; This product adopts capacitance touch technology simultaneously, and friendly interface is easy to operate.This alarm controller for combustible gas base has greatly facilitated client's later stage dilatation or maintenance work, has improved the compatible and maintainable of alarm controller for combustible gas base.The utility model is simple in structure, with low cost, and has wide range of applications.
Accompanying drawing explanation
Fig. 1 is that the inside of alarm controller for combustible gas base of the present utility model forms schematic diagram.
Fig. 2 is the surface of shell schematic diagram of alarm controller for combustible gas base of the present utility model.
Fig. 3 is the structural representation of alarm controller for combustible gas base of the present utility model.
Fig. 4 is the bus communication of alarm controller for combustible gas base of the present utility model and the electrical block diagram of testing circuit.
Fig. 5 is the electrical block diagram of the keystroke handling unit of alarm controller for combustible gas base of the present utility model.
Fig. 6 in the power supply unit of alarm controller for combustible gas base of the present utility model transfers AC220V to the electrical block diagram of DC24V part.
Fig. 7 in the power supply unit of alarm controller for combustible gas base of the present utility model transfers DC24V to the electrical block diagram of 5V part.
Fig. 8 in the power supply unit of the utility model alarm controller for combustible gas base of the present utility model transfers DC5V to the electrical block diagram of 3.3V part.
Embodiment
In order more clearly to describe technology contents of the present utility model, below in conjunction with specific embodiment, conduct further description.
The utility model is a kind of alarm controller for combustible gas base that can be applied to oil, chemical industry identification three-wire system bus signals and four-wire system bus signals.It is in plastic casing, comprises interconnective controller main control unit, power supply unit and keystroke handling unit.
In a kind of embodiment of the present utility model, as shown in Figures 1 to 3, comprise interconnective main control unit, power supply unit, keystroke handling unit in housing and housing.Described controller main control unit, power supply unit are pegged graft fixing by contact pin and socket, and main control unit is connected with 6PIN winding displacement by contact pin with push-button unit.Described main control unit comprises microprocessor, liquid crystal display control circuit, storage unit, bus communication and testing circuit, and described microprocessor connects respectively described liquid crystal display control circuit, storage unit, bus communication and testing circuit, power supply unit and button operation processing unit.Wherein, described storage unit is EEPROM (Electrically Erasable Programmable Read Only Memo), and described EEPROM (Electrically Erasable Programmable Read Only Memo) is connected in described microprocessor.
In this alarm controller for combustible gas base, described controller button operation processing unit is that capacitance type touch key dynamically connects.
In this alarm controller for combustible gas base, on described housing, offer display window, the liquid crystal display control circuit in described main control unit is arranged at the position of described display unit window.
In a kind of more preferably embodiment, as shown in Figure 3, described alarm controller for combustible gas base also comprises touch key-press and liquid crystal display, described touch key-press is all connected described main control unit with liquid crystal display, on described housing, offer operation push-button, described liquid crystal display is arranged at the position of described liquid crystal display window.Described main control unit comprises microprocessor, liquid crystal display control circuit and storage unit, bus communication and testing circuit, described microprocessor connects respectively described liquid crystal display control circuit, storage unit, bus communication and testing circuit, and described liquid crystal display control circuit connects described liquid crystal display.
In a kind of preferred embodiment, described microprocessor also comprises LCD backlight control circuit, and described LCD backlight control circuit connects described liquid crystal display.
At another kind, more preferably in embodiment, described microprocessor also comprises SPI and I2C interface, and described interface connects described storage unit.
At another, more preferably in embodiment, described microprocessor comprises keystroke interface, and described interface is connected to described touch key-press processing unit, and keystroke handling unit has comprised touch key-press circuit.Be illustrated in figure 5 the electrical block diagram of keystroke handling cell mesh.
A kind of preferred embodiment in, described power supply unit comprises that the switch between alternating current and standby battery circuit, active and standby electricity discharge and recharge testing circuit, main electric treatment circuit, standby electric treatment circuit, relay and fault logic circuits, and described the switch between alternating current and standby battery circuit, active and standby electricity discharge and recharge testing circuit, relay and fault logic circuits and connect described main control unit.
A kind of preferred embodiment in, described housing is ABS F29 plastic casing, and on housing, is provided with the water joint of four M16*1.5 and the O-ring seal of ∮ 15, on described housing, hummer is installed, and warns client in fault with while reporting to the police.
This alarm controller for combustible gas base has mainly completed following functions: 1, carry out communication with gas detector, read the state of detector, and process corresponding processing; 2, the information that storage detector sends; 3, utilize bus communication, detector is patrolled and examined, demarcates, arranged the information such as range, gas kind, alarm set point; 4, detect the various states of main electricity, standby electricity, and make corresponding processing, the information such as corresponding hummer, relay and demonstration, warning, fault are set.
In power supply unit, bus communication circuit and main control unit bus controller interface circuit, control by microprocessor, and connect by double contact pin.Controller is first identified detector quantity by the mode of patrolling and examining, according to the quantity of external detector, and the counting of automatic shield detector; By three-wire system or four-wire system bus communication mode, read detector information again, whether then detect bus short circuit, communication whether fault, detector whether fault, whether outrange, whether report to the police, and it is processed.The communication reliability of assurance system like this, and the quantity of the external detector of judgement that can be real-time, and the communication of being correlated with.
Main electric treatment circuit in power supply unit, standby electric treatment circuit, the switch between alternating current and standby battery circuit, active and standby electricity discharge and recharge testing circuit, undervoltage warning circuit, relay and fault logic circuits, by the microprocessor of main control unit, control.Controller first main electricity is detected, then standby electricity detected and power supply short circuit detects, and then it is processed accordingly, as shown in Figure 4.Feed circuit, first adopt Guangzhou to cause ZY0JGB24D-25W AC-DC module far away and directly export DC24V, as shown in Figure 6, give bus circuit, relay circuit power supply, then by DC-DC, transfer 5V to, as shown in Figure 7, output voltage V out=1.25 * (1+R3/R2)=1.25 * (1+3.6/1.2)=5V, LDO transfers 3.3V to and to bus communication chip and microprocessor, liquid crystal circuit, key circuit, powers respectively, as shown in Figure 8.
In the technical scheme of alarm controller for combustible gas base of the present utility model, wherein each included function device and modular device all can or be selected existing shaped article commonly known in the art corresponding to actual particular hardware circuit structure, therefore these modules and unit only utilize hardware circuit just can realize, and do not need to assist can automatically realize corresponding function specifically to control software.
Adopted the alarm controller for combustible gas base of this utility model, owing to thering is bus communication unit and bus detecting unit, and controller energy automatic detecting, and there is storage unit, can shield and count according to the quantity of the external detector of reality, be very easy to the requirement of client's later stage dilatation; If client, because order mistake or wiring error are bought this product, also can not affect client's use, greatly facilitated client's line service, meet client's dilatation demand; This kind of product adopts capacitance touch technology simultaneously, facilitates client to operate; There is power supply short circuit, fault detection capability, improved reliability and the security of alarm controller for combustible gas base.The utility model is simple in structure, with low cost, and has wide range of applications.
In this instructions, the utility model is described with reference to its specific embodiment.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (9)
1. an alarm controller for combustible gas base, it is characterized in that, the main control unit that described controller comprises housing and is arranged at described enclosure interior, power supply unit and keystroke handling unit, described main control unit is connected with socket by contact pin with described power supply unit, described main control unit is connected with described keystroke handling unit with winding displacement by contact pin, described housing upper surface offers display window, described main control unit is arranged at the below of described display window, described main control unit comprises the storage unit that microprocessor is connected with microprocessor with described, bus communication and testing circuit.
2. alarm controller for combustible gas base according to claim 1, is characterized in that, described storage unit is EEPROM (Electrically Erasable Programmable Read Only Memo).
3. alarm controller for combustible gas base according to claim 2, is characterized in that, described microprocessor is connected with described storage unit with I2C interface by SPI.
4. alarm controller for combustible gas base according to claim 1, is characterized in that, described controller also comprises liquid crystal display, and described liquid crystal display is connected with described microprocessor.
5. alarm controller for combustible gas base according to claim 4, it is characterized in that, described main control unit also comprises liquid crystal display control circuit and LCD backlight control circuit, and described liquid crystal display control circuit is connected with described liquid crystal display with LCD backlight control circuit.
6. alarm controller for combustible gas base according to claim 1, it is characterized in that, described power supply unit comprises that respectively the switch between alternating current and standby battery circuit, the active and standby electricity that are connected with described main control unit discharge and recharge testing circuit, main electric treatment circuit, standby electric treatment circuit, relay and fault logic circuits and undervoltage warning circuit.
7. alarm controller for combustible gas base according to claim 1, is characterized in that, described keystroke handling unit is capacitance type touch key control module.
8. alarm controller for combustible gas base according to claim 1, is characterized in that, described housing is ABS plastic box, and described housing upper surface is provided with several water joints.
9. alarm controller for combustible gas base according to claim 1, is characterized in that, described controller also comprises the hummer being arranged on described housing, and described hummer is connected with described microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566883.3U CN203433356U (en) | 2013-09-12 | 2013-09-12 | Combustible gas alarm controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566883.3U CN203433356U (en) | 2013-09-12 | 2013-09-12 | Combustible gas alarm controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203433356U true CN203433356U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320566883.3U Expired - Lifetime CN203433356U (en) | 2013-09-12 | 2013-09-12 | Combustible gas alarm controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203433356U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110111540A (en) * | 2019-06-11 | 2019-08-09 | 武汉科稳测控技术有限公司 | A kind of multifunctional gas alarm controller |
| CN115798156A (en) * | 2022-12-14 | 2023-03-14 | 济南鼎诺科技有限公司 | Portable host based on gas detector |
-
2013
- 2013-09-12 CN CN201320566883.3U patent/CN203433356U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110111540A (en) * | 2019-06-11 | 2019-08-09 | 武汉科稳测控技术有限公司 | A kind of multifunctional gas alarm controller |
| CN115798156A (en) * | 2022-12-14 | 2023-03-14 | 济南鼎诺科技有限公司 | Portable host based on gas detector |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
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| CX01 | Expiry of patent term |