CN113766355A - Sensor based on BACnet protocol - Google Patents
Sensor based on BACnet protocol Download PDFInfo
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- CN113766355A CN113766355A CN202110885345.XA CN202110885345A CN113766355A CN 113766355 A CN113766355 A CN 113766355A CN 202110885345 A CN202110885345 A CN 202110885345A CN 113766355 A CN113766355 A CN 113766355A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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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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- Computer Networks & Wireless Communication (AREA)
- Fire-Detection Mechanisms (AREA)
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Abstract
The invention discloses a sensor based on a BACnet protocol, which belongs to the field of sensors and comprises an information acquisition component, an information conversion component and an information transmission component, wherein the information acquisition component comprises a temperature sensor, a fire sensor and a positioning chip, the information conversion component is a data conversion module, the temperature sensor, the fire sensor and the positioning chip are connected with the input end of the data conversion module through signal input wires, the output end of the data conversion module is connected with the information transmission component through signal output wires, and the information transmission component comprises a signal connecting end and an external signal wire. The invention combines the positioning information, the temperature information, the fire information and the like into a group of electronic information through the data conversion module to be transmitted, thereby being convenient for monitoring the information of the building at any time, reducing the wiring of data lines, having simple wiring structure and less required lines, saving wires, reducing the cost required by building monitoring, ensuring the safety and being convenient for the use of the device.
Description
Technical Field
The invention relates to the field of sensors, in particular to a sensor based on a BACnet protocol.
Background
With the development of information technology and the entire information industry, building automation systems are moving toward integration, intelligence and networking. The field bus only defines the field control level network of the building automatic control system, and the standardization process of the building automatic control system network does not meet the publicization and standardization of the field control level network, and further pursues the standardization of the whole communication solution. The building automatic control equipment is divided into two parts in terms of functions: a part of the control functions of the specialized processing equipment; and the other part specially processes the data communication function of the equipment. BACnet is to establish a unified data communication standard so that devices can interoperate. In BACnet, objects are a set of data structures transmitted between network devices, and network devices implement interoperation by reading and modifying object data structures encapsulated in application layer APDUs.
Data that need monitor between current building are too many, like the information of each needs such as temperature, smog conflagration, each layer building all needs information acquisition simultaneously, and the more sensor that needs more data line with various information transmission to control center, and the condition of wiring can be very complicated, consumes too much wire easily, increases use cost.
Disclosure of Invention
In view of the above-mentioned problems, it is an object of the present invention to provide a sensor based on BACnet protocol, so as to solve the above-mentioned problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a sensor based on BACnet agreement, includes information acquisition subassembly, information conversion subassembly and information transmission subassembly, the information acquisition subassembly include temperature sensor, fire sensor and location chip, the information conversion subassembly is the data conversion module, temperature sensor, fire sensor, location chip pass through the signal input wire and are connected with data conversion module input, the data conversion module output passes through the signal output wire and the information transmission subassembly is connected, the information transmission subassembly includes signal connection end and external signal line.
As a further scheme of the invention: the information acquisition subassembly and the data conversion module all fixed mounting in one side of fixed plate, the opposite side of fixed plate is equipped with the wiring end connecting plate, be equipped with power connection end and signal connection end on the wiring end connecting plate, be equipped with the visor on one side of fixed plate, information acquisition subassembly, data conversion module set up in the cavity between visor and fixed plate, be equipped with the mounting panel on the opposite side of fixed plate, the terminal box is constituteed to fixed plate and mounting panel, power connection end and signal connection end set up inside the terminal box.
As a further scheme of the invention: the information acquisition assembly and the data conversion module are connected with the power connecting end through power supply communication wires, a power line connecting pipe and a signal line connecting pipe are arranged on the junction box, an external power line penetrates through the power line connecting pipe to be connected with the power connecting end, and the external signal line penetrates through the signal line connecting pipe to be connected with the signal connecting end.
As a further scheme of the invention: the protective cover is evenly provided with air holes.
As a further scheme of the invention: the mounting plate on be equipped with the bolt, be equipped with the connecting screw hole on the visor.
As a further scheme of the invention: the visor include fire-retardant layer, support protective layer and inner liner, the inner liner sets up at the protective cover inner wall, fire-retardant layer setting is at the protective cover outer wall, supports the intermediate position of protective layer setting at fire-retardant layer, inner liner.
As a further scheme of the invention: the temperature sensor comprises a shell, a filling ceramic body, a thermistor and a compensation resistor, wherein the thermistor and the compensation resistor which are connected in series are arranged in the shell, and the filling ceramic body is arranged among the thermistor, the compensation resistor and the shell.
As a further scheme of the invention: the fire sensor comprises a photoelectric smoke sensor and an ionic smoke sensor.
As a further scheme of the invention: and a heat radiation fan is arranged in the protective cover.
As a further scheme of the invention: and a drying agent box is arranged in the junction box.
Compared with the prior art; the invention has the beneficial effects that: the invention monitors the temperature rise and fall condition of the building interior at any time through the temperature sensor when working, monitors whether the fire condition occurs in the building interior at any time through the fire sensor, and transmits the temperature information and the fire information to the data conversion module, the data conversion module can be a control chip containing an A/D conversion circuit, converts the collected signals into electric signals and transmits the electric signals to the building monitoring center through the signal connecting end and an external signal line, the data conversion module combines the positioning information of the positioning chip, the temperature information of the floor collected by the temperature sensor and the fire information collected by the fire sensor into a group of electronic information, the building information can be conveniently monitored at any time, the wiring of the data line is reduced, the wiring structure is simple, the needed lines are fewer, the conducting wire is saved, the cost required by building monitoring is reduced, and the safety is ensured, the use of the device is convenient.
Drawings
Fig. 1 is a schematic structural diagram of a sensor based on the BACnet protocol.
Fig. 2 is a schematic diagram of a sensor structure based on the BACnet protocol.
Fig. 3 is a schematic structural diagram of a temperature sensor in a sensor based on the BACnet protocol.
Fig. 4 is a schematic structural diagram of a protective cover in a sensor based on the BACnet protocol.
In the figure: 1. mounting a plate; 2. a bolt; 3. a junction box; 4. a fixing plate; 5. a protective cover; 51. a flame retardant layer; 52. supporting the protective layer; 53. an inner liner layer; 6. air holes are formed; 7. a temperature sensor; 71. a housing; 72. filling a ceramic body; 73. a thermistor; 74. a compensation resistor; 8. a photoelectric smoke sensor; 9. an ionic smoke sensor; 10. a data conversion module; 11. positioning the chip; 12. a terminal connection plate; 13. a power supply connection end; 14. a signal connection end; 15. a power line connecting pipe; 16. a signal line connecting pipe; 17. a signal input lead; 18. a signal output conductor; 19. the power supply is communicated with the lead; 20. a heat radiation fan; 21. a desiccant box; 22. and connecting screw holes.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; rather than all embodiments. Based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and "connected" are to be construed broadly; for example, the two elements may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, a sensor based on BACnet protocol comprises an information acquisition component, an information conversion component and an information transmission component, wherein the information acquisition component comprises a temperature sensor 7, a fire sensor and a positioning chip 11, the information conversion component is a data conversion module 10, the temperature sensor 7, the fire sensor and the positioning chip 11 are connected with the input end of the data conversion module 10 through a signal input lead 17, the output end of the data conversion module 10 is connected with the information transmission component through a signal output lead 18, the information transmission component comprises a signal connecting end 14 and an external signal wire, the temperature sensor 7 is used for monitoring the temperature rise and fall condition inside a building at any time during working, the fire sensor is used for monitoring whether a fire disaster occurs inside the building at any time and transmitting temperature information and fire disaster information to the data conversion module 10, the data conversion module 10 can be a control chip containing an A/D conversion circuit, converts collected signals into electric signals and transmits the electric signals to a building monitoring center through a signal connecting end 14 and an external signal line, the data conversion module 1 combines positioning information of a positioning chip 11 chip, temperature information of floors collected by a temperature sensor 7 and fire information collected by a fire sensor into a group of electronic information, if the temperature of floors 7 at 23 ℃ without fire happening is combined into a group of information and transmits the signals to the control center through a data line, building information can be monitored conveniently at any time, wiring of the data line is reduced, the wiring structure is simple, needed lines are few, wires are saved, cost required by building monitoring is reduced, safety is guaranteed, and the device is convenient to use.
The information acquisition assembly and the data conversion module 10 are both fixedly arranged on one side of the fixed plate 4, the other side of the fixed plate 4 is provided with a wiring end connecting plate 12, the wiring end connecting plate 12 is provided with a power supply connecting end 13 and a signal connecting end 14, one side of the fixed plate 4 is provided with a protective cover 5, the information acquisition assembly and the data conversion module 10 are arranged in a cavity between the protective cover 5 and the fixed plate 4, the other side of the fixed plate 4 is provided with a mounting plate 1, the fixed plate 4 and the mounting plate 1 form a junction box 3, the power supply connecting end 13 and the signal connecting end 14 are arranged inside the junction box 3, the safety of the work of the information acquisition assembly and the data conversion module 10 is protected by the protective cover 5, the working safety of the power connection end 13 and the signal connection end 14 is conveniently ensured through the junction box 3, the device is favorable for collecting building information, and the building is conveniently monitored in the follow-up process.
Information acquisition subassembly and data conversion module 10 are connected through power intercommunication wire 19 and power connection end 13, and power connection end 13 and external power line are connected, do benefit to each parts power supplies such as information acquisition subassembly and data conversion module 10 through the circular telegram of external power line, do benefit to the normal work of each component, do benefit to the security of wiring, make things convenient for the use of device.
In this embodiment, evenly be equipped with bleeder vent 6 on the visor 5, the convenient ventilative going on of bleeder vent 6 does benefit to the inside temperature sensor 7 of device and fire sensor and carries out information acquisition to the condition of outside building, guarantees the security, makes things convenient for device's use.
In this embodiment, be equipped with bolt 2 on the mounting panel 1, through bolt 2 convenience with each position of whole device installation building, do benefit to the information of monitoring each layer of building at any time, do benefit to the use of work, guarantee the security.
In this embodiment, be equipped with connection screw hole 22 on the visor 5, visor 5 is convenient through connecting screw hole 22 and fixed plate 4 bolted connection, conveniently guarantees the fixed of device, does benefit to the use of device, guarantees the security.
In this embodiment, the protective cover 5 includes a flame retardant layer 51, a supporting protective layer 52 and an inner liner 53, the inner liner 53 is disposed on the inner wall of the protective cover 5, the flame retardant layer 51 is disposed on the outer wall of the protective cover 5, the supporting protective layer 52 is disposed at the middle position between the flame retardant layer 51 and the inner liner 53, when a fire occurs, the flame retardant layer 51 is used to cut off the safety of combustion to the internal elements of the device, thereby being beneficial to ensuring the safety of the internal elements of the device in working, improving the safety of the device in use and facilitating the use of the device; the supporting protective layer 52 is beneficial to ensuring the device, avoiding the damage to the device caused by external collision and the like, and improving the safety of the use of the device; the inner liner 53 is beneficial to ensuring the elements inside the protective cover 5, avoiding the damage of friction to the elements during installation, improving the use safety of the device and prolonging the service life of the device.
In this embodiment, the temperature sensor 7 includes a casing 71, a filled ceramic body 72, a thermistor 73 and a compensation resistor 74, the thermistor 73 and the compensation resistor 74 are arranged in the casing 71 and connected in series, the filled ceramic body 72 is arranged between the thermistor 73, the compensation resistor 74 and the casing 71, the thermistor 73 changes along with the change of the temperature of the external environment, so that the temperature of the surrounding environment can be measured at any time, the compensation resistor 74 is beneficial to protecting a circuit, and the filled ceramic body 72 is beneficial to protecting the thermistor 73 and the compensation resistor 74, so that the safety is ensured.
In the embodiment, the fire sensor comprises a photoelectric smoke sensor 8 and an ionic smoke sensor 9, when a fire disaster occurs, the generated bear fire causes less tiny particles of smoke in the air, the fire disaster spreads extremely fast, and the fire disaster is monitored in time by the ionic smoke sensor 9 and transmitted to the control center, so that the fire disaster can be arranged in time; when smoldering, slightly bigger smog particle can be some more in the air, in time to its discovery through photoelectric type smoke transducer 8, does benefit to the follow-up arrangement of making it, does benefit to the conflagration condition in the timely control building, does benefit to the security of guaranteeing building, makes things convenient for the use of device.
In this embodiment, be equipped with power cord even spool 15, signal line even spool 16 on terminal box 3, external power cord passes power cord even spool 15 and power connection end 13 and connects, and external signal line passes signal line even spool 16 and signal connection end 14 and connects, makes things convenient for the connection of device and external lines, guarantees the security.
In this embodiment, the inside cooling fan 20 that is equipped with of visor 5, can open the inside miniature cooling fan 20 of device when taking place the conflagration, conveniently dispel the heat to the device is inside, does benefit to the inside temperature of reduction device, and the high temperature that produces when reducing the conflagration is to the damage of device, improves the security that the device used, makes things convenient for the use of device.
In this embodiment, the inside drier box 21 that is equipped with of terminal box 3, through the inside steam of the convenient timely absorbing device of drier box 21, avoid steam to influence the security of device internal component work, do benefit to the security of guaranteeing the electric wire link, facilitate the use of device.
The working principle of the invention is as follows: when the intelligent building temperature monitoring system works, the temperature sensor 7 monitors the rising and falling conditions of the temperature in the building at any time, the fire sensor monitors whether a fire disaster occurs in the building at any time, the temperature information and the fire disaster information are transmitted to the data conversion module 10, the data conversion module 10 can be a control chip with an A/D conversion circuit, collected signals are converted into electric signals and are transmitted to the building monitoring center through the signal connecting end 14 and an external signal line, the data conversion module 1 combines the positioning information of the positioning chip 11 chip, the temperature information of the floor collected by the temperature sensor 7 and the fire disaster information collected by the fire disaster sensor into a group of electronic information, for example, the floor 7 temperature 23 ℃ and no fire disaster occur are combined into a group of information, and the signals are transmitted to the control center through a data line, so that the building information can be monitored at any time conveniently, reduce the wiring of data line, wiring structure is simple, and the circuit that needs is less, practices thrift the wire, reduces the required cost of building control, guarantees the security, does benefit to the security of protection information acquisition subassembly and the work of data conversion module 10 through visor 5, conveniently guarantees the security of power connection end 13 and the 14 work of signal connection end through terminal box 3, does benefit to the collection of device to building information, and convenient follow-up is monitored the building. The power supply of each component such as the information acquisition assembly, the data conversion module 10 and the like is facilitated through the electrification of an external power line, the normal work of each element is facilitated, the safety of wiring is facilitated, the ventilation holes 6 are convenient to conduct, the information acquisition of the condition of an external building is facilitated through the temperature sensor 7 and the fire sensor inside the device, the safety is guaranteed, the whole device is convenient to be installed at each position of the building through the bolts 2, the information of each layer of the building is favorably monitored at any time, the use of the work is facilitated, the protective cover 5 is convenient to be connected with the fixing plate 4 through the connecting screw holes 22, the fixing of the device is convenient to guarantee, the safety of combustion to the elements inside the device is cut off through the flame-retardant layer 51 when a fire occurs, the safety of the work of the elements inside the device is favorably guaranteed, the use safety of the device is improved, and the use of the device is convenient; the supporting protective layer 52 is beneficial to ensuring the device, avoiding the damage to the device caused by external collision and the like, and improving the safety of the use of the device; the inner liner 53 is beneficial to ensuring the elements inside the protective cover 5, avoiding the damage of friction to the elements during installation, improving the use safety of the device and prolonging the service life of the device. The thermistor 73 changes along with the change of the temperature of the external environment, the temperature of the surrounding environment can be measured at any time, the compensation resistor 74 is beneficial to protecting a circuit, the ceramic filling body 72 is beneficial to protecting the thermistor 73 and the compensation resistor 74, when a fire disaster occurs, the generated bear fire causes less tiny particles of smoke in the air, the spread of the fire disaster is extremely fast, the smoke is timely monitored through the ion type smoke sensor 9 and is transmitted to a control center, and the arrangement is convenient to be timely made; when smoldering, slightly bigger smog particle can be some more in the air, in time to its discovery through photoelectric type smoke transducer 8, do benefit to the follow-up arrangement of making it, do benefit to the conflagration condition in the timely control building, do benefit to the security of guaranteeing the building, can the inside miniature cooling fan 20 of opening device when the conflagration breaing out, conveniently dispel the heat to the device is inside, do benefit to the inside temperature of reduction device, the high temperature that produces when reducing the conflagration is to the damage of device, the security that the improvement device used, make things convenient for the inside steam of timely absorbing device through drier box 21, avoid steam to influence the security of device inner member work, do benefit to the security of guaranteeing the electric wire link, convenience of use device.
To those skilled in the art; it is obvious that the invention is not restricted to the details of the above-described exemplary embodiments; and without departing from the spirit or essential characteristics of the invention; the invention can be embodied in other specific forms. Thus; from whatever point; the embodiments should be considered as exemplary; and is not limiting; the scope of the invention is indicated by the appended claims rather than by the foregoing description; all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore; it should be understood that; although the present description has been described in terms of embodiments; but not every embodiment contains only a single solution; this manner of description is by way of clarity only; the person skilled in the art will consider the description as a whole; the technical schemes in the embodiments can also be combined appropriately; forming other embodiments as will be appreciated by those skilled in the art.
Claims (10)
1. The sensor based on the BACnet protocol is characterized by comprising an information acquisition component, an information conversion component and an information transmission component, wherein the information acquisition component comprises a temperature sensor (7), a fire sensor and a positioning chip (11);
the information conversion component is a data conversion module (10), and the temperature sensor (7), the fire sensor and the positioning chip (11) are connected with the input end of the data conversion module (10) through a signal input lead (17);
the output end of the data conversion module (10) is connected with an information transmission component through a signal output lead (18), and the information transmission component comprises a signal connecting end (14) and an external signal wire.
2. The sensor based on the BACnet protocol according to claim 1, wherein the information acquisition component and the data conversion module (10) are both fixedly installed on one side of the fixing plate (4), the other side of the fixing plate (4) is provided with a terminal connecting plate (12), the terminal connecting plate (12) is provided with a power connecting end (13) and a signal connecting end (14), one side of the fixing plate (4) is provided with a protective cover (5), the information acquisition component and the data conversion module (10) are arranged in a cavity between the protective cover (5) and the fixing plate (4), the other side of the fixing plate (4) is provided with a mounting plate (1), the fixing plate (4) and the mounting plate (1) form a junction box (3), and the power connecting end (13) and the signal connecting end (14) are arranged inside the junction box (3).
3. The sensor based on the BACnet protocol according to claim 2, wherein the information acquisition component and the data conversion module (10) are connected with the power connection end (13) through a power supply communication wire (19), a power line connection tube (15) and a signal line connection tube (16) are arranged on the junction box (3), an external power line passes through the power line connection tube (15) to be connected with the power connection end (13), and an external signal line passes through the signal line connection tube (16) to be connected with the signal connection end (14).
4. The BACnet protocol based sensor according to claim 2, wherein the protective cover (5) is uniformly provided with air holes (6).
5. The BACnet protocol based sensor according to claim 2, wherein the mounting plate (1) is provided with bolts (2), and the protective cover (5) is provided with connecting screw holes (22).
6. The BACnet protocol-based sensor according to claim 5, wherein the protective cover (5) comprises a flame retardant layer (51), a supporting protective layer (52) and an inner liner layer (53), the inner liner layer (53) is arranged on the inner wall of the protective cover (5), the flame retardant layer (51) is arranged on the outer wall of the protective cover (5), and the supporting protective layer (52) is arranged in the middle of the flame retardant layer (51) and the inner liner layer (53).
7. The BACnet protocol-based sensor according to claim 1, wherein the temperature sensor (7) comprises a housing (71), a filling ceramic body (72), a thermistor (73) and a compensation resistor (74), the thermistor (73) and the compensation resistor (74) are connected in series with each other inside the housing (71), and the filling ceramic body (72) is arranged between the thermistor (73), the compensation resistor (74) and the housing (71).
8. The BACnet protocol based sensor of claim 2, wherein the fire sensor comprises a photoelectric smoke sensor (8) and an ionic smoke sensor (9).
9. The BACnet protocol based sensor according to claim 8, wherein the protective cover (5) is internally provided with a heat dissipation fan (20).
10. The BACnet protocol based sensor according to claim 8, wherein the junction box (3) is internally provided with a desiccant box (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110885345.XA CN113766355A (en) | 2021-08-03 | 2021-08-03 | Sensor based on BACnet protocol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110885345.XA CN113766355A (en) | 2021-08-03 | 2021-08-03 | Sensor based on BACnet protocol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113766355A true CN113766355A (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110885345.XA Withdrawn CN113766355A (en) | 2021-08-03 | 2021-08-03 | Sensor based on BACnet protocol |
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| CN (1) | CN113766355A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115695513A (en) * | 2022-10-26 | 2023-02-03 | 安徽生命港湾信息技术有限公司 | Sensor signal transmission system based on IP address identification |
-
2021
- 2021-08-03 CN CN202110885345.XA patent/CN113766355A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115695513A (en) * | 2022-10-26 | 2023-02-03 | 安徽生命港湾信息技术有限公司 | Sensor signal transmission system based on IP address identification |
| CN115695513B (en) * | 2022-10-26 | 2025-07-08 | 安徽生命港湾信息技术有限公司 | Sensor signal transmission system based on IP address identification |
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Application publication date: 20211207 |