CN203055081U - Residual current-type electrical fire monitoring detector - Google Patents
Residual current-type electrical fire monitoring detector Download PDFInfo
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- CN203055081U CN203055081U CN 201220599142 CN201220599142U CN203055081U CN 203055081 U CN203055081 U CN 203055081U CN 201220599142 CN201220599142 CN 201220599142 CN 201220599142 U CN201220599142 U CN 201220599142U CN 203055081 U CN203055081 U CN 203055081U
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- fire monitoring
- electrical fire
- monitoring detector
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Abstract
The utility model discloses a residual current electrical fire monitoring detector. The object of the utility model is to provide a practical residual current electrical fire monitoring detector which adopts SMD technology and DSP control technology. The residual current electrical fire monitoring detector of the utility model is characterized in that the residual current electrical fire monitoring detector is mainly composed of an MCU data processing center, a switching power supply circuit, a keyboard operation circuit, an indicating light circuit, an LCD display circuit, a failure warning alarm circuit, a temperature sampling circuit, a residual current sampling circuit, a fault passive contact output circuit and a data storage circuit. The residual current electrical fire monitoring detector of the utility model has the advantages of small volume, low cost, high product reliability and the like.
Description
Technical field
The utility model relates to a kind of fire alarm electronic product, especially a kind of residual-current electrical fire monitoring detector.
Background technology
The residual-current electrical fire monitoring detector is a kind of freestanding intelligent detector.The relay portion that detector is handled as the electric fire monitoring system signal, can carry out intellectual analysis by the signal that built-in circuit and software pass over subordinate's terminal mutual inductor handles, can judge the state (being malfunction, fire alarm state, normal operating conditions) of each detector of subordinate's terminal current supply circuit of living in thus, and by the RS485 communication network information such as the fault of this machine (be many detectors) subordinate's each detector of terminal, warning are sent to higher level's electric fire disaster monitoring equipment, the overall treatment of finish monitoring, reporting to the police.
Existing residual-current electrical fire monitoring detector kind is more various in the market, by adopt that the LED charactron shows with the older generation's technology that adopts the mimic channel discrete device to form, the new generation product that adopts the LCD lattice lcd to show is also arranged, but market sale price costliness, the client is difficult to accept.
The utility model content
The technical problems to be solved in the utility model provides the residual-current electrical fire monitoring detector of a kind of SMD of employing mount technology and the practicality of MCU control technology.
For addressing the above problem, the technical solution adopted in the utility model mainly by: MCU data processing centre (DPC), switching power circuit, keyboard operation circuit, indicator light circuit, LCD display circuit, failure alarm circuit, temperature sampling circuit, residual current sample circuit, fault do not have the source contact output circuit and data storage circuitry is formed;
Described switching power circuit is as the power supply of whole circuit, giving MCU data processing centre (DPC) described temperature sampling circuit and residual current sample circuit are handled the signal that samples through signal after judges, if the amplitude of signal reaches the alarming value of setting, then MCU data processing centre (DPC) sends alerting signal, the failure alarm circuit action, and provide warning message to host computer, send control signal simultaneously, the control fault does not have the source contact output circuit, make the alarm relay action, parameter detector cooperates by keyboard operation circuit and LCD display circuit to be set by being stored by data storage circuitry, and the running status of circuit shows by indicator light circuit and LCD display circuit.
Described residual-current electrical fire monitoring detector is characterized in that: described residual-current electrical fire monitoring detector also comprises software on-line debugging circuit.
Described residual-current electrical fire monitoring detector is characterized in that: described residual-current electrical fire monitoring detector also comprises the software download circuit.
Described residual-current electrical fire monitoring detector is characterized in that: described residual-current electrical fire monitoring detector is provided with Transient Suppression Diode in the input circuit of signal.
Described residual-current electrical fire monitoring detector, it is characterized in that: described switching power circuit is gone into power supply through the high-frequency transformer by pliotron PT213003 control, the secondary generation of high-frequency transformer by triode PD6 output+11V and by PD5 output+5V, wherein+11V through U2 be transformed into-11V and+5V ,+11V is together as the power supply of whole circuit.
Residual-current electrical fire monitoring detector of the present utility model, it is little to have a volume, and cost is low, the product reliability advantages of higher.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is control flow chart of the present utility model.
Fig. 2 is switching power circuit figure of the present utility model.
Embodiment
As shown in Figure 1, residual-current electrical fire monitoring detector of the present utility model, mainly by: MCU data processing centre (DPC), switching power circuit, keyboard operation circuit, indicator light circuit, LCD display circuit, failure alarm circuit, temperature sampling circuit, residual current sample circuit, fault do not have source contact output circuit, data storage circuitry and RS485 communicating circuit and form.
Described switching power circuit is as the power supply of whole circuit, giving MCU data processing centre (DPC) described temperature sampling circuit and residual current sample circuit are handled the signal that samples through signal after judges, if the amplitude of signal reaches the alarming value of setting, then MCU data processing centre (DPC) sends alerting signal, the failure alarm circuit action, and provide warning message to host computer, send control signal simultaneously, the control fault does not have the source contact output circuit, make the alarm relay action, parameter detector cooperates by keyboard operation circuit and LCD display circuit to be set by being stored by data storage circuitry, and the running status of circuit shows by indicator light circuit and LCD display circuit.Described RS485 communicating circuit realizes that this detector is with the data between the host computer and control command transmission, by general CAN agreement, the mode of RS485 interface connects, and this detector is provided with 2 groups of RS485 interfaces, makes things convenient for after the connection correct between each detector again with connecting between the main frame.
Behind logical upward power supply, green run indicator begins flicker, the indication power work is normal, when residual current in the circuit surpasses or equals to set alarming value, MCU data processing centre (DPC) just sends instruction and lights the warning red led, buzzer warning in the failure alarm circuit, fault do not have alarm relay action in the source contact output circuit; When the residual current transformer connecting line of residual current input circuit comes off or during short circuit, MCU data processing centre (DPC) just sends instruction and lights the fault yellow indicator lamp, buzzer warning in the simultaneous faults warning circuit, fault do not have alarm relay action in the source contact output circuit.Detector is provided with the TVS Transient Suppression Diode and prevents the defective detector that is struck by lightning in the input circuit of signal.Detector is realized the software download function by software download circuit module.
Residual-current electrical fire monitoring detector of the present utility model also comprises software on-line debugging circuit, realizes software on-line debugging and the online direct download of program, and is easy to operate simple.
Residual-current electrical fire monitoring detector of the present utility model, described switching power circuit is gone into power supply through the high-frequency transformer by pliotron PT213003 control, the secondary generation of high-frequency transformer by triode PD6 output+11V and by PD5 output+5V, wherein+11V through U2 be transformed into-11V and+5V ,+11V is together as the power supply of whole circuit.Compare on the market mode that adopts after the Industrial Frequency Transformer step-down rectification again to produce accessory power supply, this programme has that the voltage power supply scope is wide, lasting accuracy is high, circuit reliability is high and work efficiency such as improves greatly at characteristics.
The above only is preferred embodiment of the present utility model, not in order to limiting the utility model, all any modifications of doing within spirit of the present utility model and principle, is equal to and replaces and improvement etc., all is included within the protection domain of the present utility model.
Claims (3)
1. residual-current electrical fire monitoring detector is characterized in that: this detector mainly by: MCU data processing centre (DPC), switching power circuit, keyboard operation circuit, indicator light circuit, LCD display circuit, failure alarm circuit, temperature sampling circuit, residual current sample circuit, fault do not have the source contact output circuit and data storage circuitry is formed;
Described switching power circuit is as the power supply of whole circuit, giving MCU data processing centre (DPC) described temperature sampling circuit and residual current sample circuit are handled the signal that samples through signal after judges, if the amplitude of signal reaches the alarming value of setting, then MCU data processing centre (DPC) sends alerting signal, the failure alarm circuit action, and provide warning message to host computer, send control signal simultaneously, the control fault does not have the source contact output circuit, make the alarm relay action, parameter detector cooperates by keyboard operation circuit and LCD display circuit to be set by being stored by data storage circuitry, and the running status of circuit shows by indicator light circuit and LCD display circuit.
2. according to the described residual-current electrical fire monitoring detector of claim 1, it is characterized in that: described residual-current electrical fire monitoring detector is provided with Transient Suppression Diode in the input circuit of signal.
3. according to the described residual-current electrical fire monitoring detector of claim 1, it is characterized in that: described switching power circuit is gone into power supply through the high-frequency transformer by pliotron PT213003 control, the secondary generation of high-frequency transformer by triode PD6 output+11V and by PD5 output+5V, wherein+11V through U2 be transformed into-11V and+5V ,+11V is together as the power supply of whole circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220599142 CN203055081U (en) | 2012-11-14 | 2012-11-14 | Residual current-type electrical fire monitoring detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220599142 CN203055081U (en) | 2012-11-14 | 2012-11-14 | Residual current-type electrical fire monitoring detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203055081U true CN203055081U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220599142 Expired - Lifetime CN203055081U (en) | 2012-11-14 | 2012-11-14 | Residual current-type electrical fire monitoring detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203055081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426271A (en) * | 2013-09-04 | 2013-12-04 | 上海华宿电气股份有限公司 | Electrical fire monitor unit with pulse metering and implementation method thereof |
| CN104103144A (en) * | 2014-06-30 | 2014-10-15 | 苏州原点工业设计有限公司 | Residual current electrical fire monitor power supply circuit |
-
2012
- 2012-11-14 CN CN 201220599142 patent/CN203055081U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426271A (en) * | 2013-09-04 | 2013-12-04 | 上海华宿电气股份有限公司 | Electrical fire monitor unit with pulse metering and implementation method thereof |
| CN103426271B (en) * | 2013-09-04 | 2015-06-17 | 上海华宿电气股份有限公司 | Electrical fire monitor unit with pulse metering and implementation method thereof |
| CN104103144A (en) * | 2014-06-30 | 2014-10-15 | 苏州原点工业设计有限公司 | Residual current electrical fire monitor power supply circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |