CN201247506Y - Apparatus for processing electrical signal of mongline digital temperature sensor - Google Patents
Apparatus for processing electrical signal of mongline digital temperature sensor Download PDFInfo
- Publication number
- CN201247506Y CN201247506Y CNU2008200125492U CN200820012549U CN201247506Y CN 201247506 Y CN201247506 Y CN 201247506Y CN U2008200125492 U CNU2008200125492 U CN U2008200125492U CN 200820012549 U CN200820012549 U CN 200820012549U CN 201247506 Y CN201247506 Y CN 201247506Y
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- circuit
- temperature sensor
- digital temperature
- bus
- electrical signal
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- Alarm Systems (AREA)
Abstract
An electrical signal processing device for a single line digital temperature sensor has the functions of accurate temperature alarm, the set-up of alarm temperature, and the like. A temperature acquisition alarm system comprises the electrical signal processing device for the single line digital temperature sensor and a temperature sensing cable which are connected, wherein the temperature sensing cable comprises a plurality of single line digital temperature sensors which are connected in parallel. The electrical signal processing device comprises a main power supply circuit (including an EMC protective circuit), a bus isolating power supply circuit, a microprocessor circuit, an EEPROM memory circuit, a single line digital temperature sensor interface code receiving and sending circuit, a liquid crystal display circuit, a key-press input circuit, a lamp indicating circuit, a power failure detection circuit, a bus networking circuit and a relay output circuit.
Description
Technical field
The present invention relates to fire alarm installation, a kind of 1-wire digital temperature sensor electric signal process unit.
Technical background
At present the principle of the line-type heat detector that uses is all based on the NTC or the CTR principle of material, both when temperature variation, the resistance of line-type heat detector temperature sensing part changes, but because this change in resistance and environment temperature, use length is relevant, so all can accurately detecting temperature, detecting temperature qualitatively, promptly when environment temperature reaches certain limit, line-type heat detector sends alerting signal, before fire takes place, can't know on-the-spot temperature conditions, thereby need a kind of on-the-spot temperature of both can accurately having surveyed, can accurately implement the linear temperature-sensing fire detecting device of fire monitoring alarm again.
Summary of the invention
The purpose of this utility model provides a kind of 1-wire digital temperature sensor electric signal process unit, can realize accurately that by electric signal process unit temperature alarming, alarm temperature such as are provided with at function.
A kind of 1-wire digital temperature sensor electric signal process unit and temperature sensing cable connect and compose the temperature acquisition warning system, wherein temperature sensing cable is made of a plurality of 1-wire digital temperature sensor parallel connections, and 1-wire digital temperature sensor can be a similarly digital temperature sensor such as DS18B20, DS1820, the DS18B22 of U.S. DALLAS company.
1-wire digital temperature sensor electric signal process unit circuit is made up of main power circuit (and comprising the EMC protection circuit), bus insulating power supply circuit, microcontroller circuit, EEPROM memory circuit, 1-wire digital temperature sensor interface transmitting-receiving decoding circuit, liquid crystal display circuit, button inputting circuits, lamp indicating circuit, power failure detection circuit, bus networking circuit, relay output circuit.
The utility model compared with prior art has the following advantages:
1, can be provided with alarm temperature by button, liquid crystal, 40 ℃～125 ℃ of scopes are set, and every ℃ adjustable.
2, reusable, can realize differential temperature, constant temperature, different constant temperature warning and fault alarm, the warning way of output is versatile and flexible, has light, relay, liquid crystal display output.
3, can realize the networking of RS485 bus, the temperature of networking easily shows and centralized control.
4, the utility model adopts intelligent algorithm on software processes, sensor is returned coded signal carry out analyzing and processing, effectively prevents to report by mistake and fail to report.
5, the utility model can detect the quantity of online 1-wire digital temperature sensor automatically, can send the prompting that goes offline when 1-wire digital temperature sensor goes offline.
6, the utility model can show the temperature of 1-wire digital temperature sensor in real time, shows elegant in appearance.
7, the utlity model has good noiseproof feature, protective characteristic and low maintainability, industrial sites such as cable tunnel, road and rail cable tunnel, cable interlayer, travelling belt, switchboard be can be widely used in and the forecast and the warning of fire are used for, and can be used for the fire monitoring in important places such as airport, steel mill, power plant, subway, ancient building, have good market outlook, potential huge social economic benefit.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model;
Fig. 2 is a structural representation of the present utility model.
Embodiment
A kind of 1-wire digital temperature sensor electric signal process unit, referring to Fig. 1, Fig. 2, mainly comprise housing and circuit, it is characterized in that the interior circuit of a kind of 1-wire digital temperature sensor electric signal process unit of the utility model is by main power circuit 1 (comprising the EMC protection circuit), bus insulating power supply circuit 2, microcontroller circuit 3, EEPROM memory circuit 4,1-wire digital temperature sensor interface transmitting-receiving decoding circuit 5, liquid crystal display circuit 6, button inputting circuits 7, lamp indicating circuit 8, power failure detection circuit 9, bus networking circuit 10, relay output circuit 11 is formed.Main power circuit 1, EEPROM memory circuit 4, digital temperature sensor interface transmitting-receiving decoding circuit 5, liquid crystal display circuit 6, button inputting circuits 7, lamp indicating circuit 8, power failure detection circuit 9, bus networking circuit 10, relay output circuit 11 all are connected with microcontroller circuit 3, and bus insulating power supply circuit 2 is connected to bus networking circuit 10 again.
Main power circuit 1 is microcontroller circuit 3 and the power supply of other peripheral circuit, mainly is that DC24V is converted to DC5V.
Bus insulating power supply circuit 2 is 10 power supplies of bus networking circuit.
The information of EEPROM memory circuit 4 store electricity signal processing apparatus has the advantages that power down is not lost.
1-wire digital temperature sensor interface transmitting-receiving decoding circuit 5 is finished the communication with the 1-wire digital temperature sensor of temperature sensing cable 12, can connect 1 road or 1 road above 1-wire digital temperature sensor, the quantity of every road 1-wire digital temperature sensor is 1～1000, and according to identical circuit form 1-wire digital temperature sensor interface transmitting-receiving decoding circuit 5 is expanded multichannels.
Liquid crystal display circuit 6 is used to show the information of a kind of 1-wire digital temperature sensor electric signal process unit of the utility model, comprises that operation is normal, fire alarm, fault, alarm temperature setting, environment temperature, networking configuration information.
Button inputting circuits 7 is used to gather the button input, carries out information setting and inquiry.
Lamp indicating circuit 8 is used for indicating status, and just often green indicating lamp is long bright, and red led is long bright during fire alarm, and yellow indicator lamp is long bright during fault.
Power failure detection circuit 9 detects the 1-wire digital temperature sensor power supply short circuit that connects, and cuts off the electricity supply when power supply short circuit, in order to avoid cause danger or device damage.
Claims (3)
1, a kind of 1-wire digital temperature sensor electric signal process unit, mainly comprise housing and circuit, it is characterized in that the circuit in the housing is made up of main power circuit (1), bus insulating power supply circuit (2), microcontroller circuit (3), EEPROM memory circuit (4), digital temperature sensor interface transmitting-receiving decoding circuit (5), liquid crystal display circuit (6), button inputting circuits (7), lamp indicating circuit (8), power failure detection circuit (9), bus networking circuit (10), relay output circuit (11); Described main power circuit (1) comprises the EMC protection circuit; Main power circuit (1), EEPROM memory circuit (4), digital temperature sensor interface transmitting-receiving decoding circuit (5), liquid crystal display circuit (6), button inputting circuits (7), lamp indicating circuit (8), power failure detection circuit (9), bus networking circuit (10), relay output circuit (11) all are connected with microcontroller circuit (3), and bus insulating power supply circuit (2) is connected to bus networking circuit (10) again.
2, a kind of 1-wire digital temperature sensor electric signal process unit according to claim 1 is characterized in that: connect the digital temperature sensor more than 1 road or 1 tunnel, the quantity of every way word temperature sensor is 1～1000.
3, a kind of 1-wire digital temperature sensor electric signal process unit according to claim 1 is characterized in that: network with computing machine and opertaing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200125492U CN201247506Y (en) | 2008-05-07 | 2008-05-07 | Apparatus for processing electrical signal of mongline digital temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200125492U CN201247506Y (en) | 2008-05-07 | 2008-05-07 | Apparatus for processing electrical signal of mongline digital temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201247506Y true CN201247506Y (en) | 2009-05-27 |
Family
ID=40731330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200125492U Expired - Lifetime CN201247506Y (en) | 2008-05-07 | 2008-05-07 | Apparatus for processing electrical signal of mongline digital temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201247506Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115578829A (en) * | 2022-11-23 | 2023-01-06 | 河北微探科技有限公司 | Temperature sensing cable fire alarm monitoring system |
-
2008
- 2008-05-07 CN CNU2008200125492U patent/CN201247506Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115578829A (en) * | 2022-11-23 | 2023-01-06 | 河北微探科技有限公司 | Temperature sensing cable fire alarm monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenyang Putaian Technology Co.,Ltd. Assignor: Zhang Chen Contract record no.: 2014210000036 Denomination of utility model: Apparatus for processing electrical signal of mongline digital temperature sensor Granted publication date: 20090527 License type: Exclusive License Record date: 20140505 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160414 Address after: Shen Liaodong road Tiexi District of Shenyang City, Liaoning province 110022 47-2 Acer international city 31-2 Patentee after: Shenyang Putaian Technology Co.,Ltd. Address before: Shenyang City, Liaoning City Road 110011, Shenhe District 35 block A No. 3 Patentee before: Zhang Chen |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090527 |