CN211239834U - Medium wave transmitter control by temperature change activestandby switching device - Google Patents
Medium wave transmitter control by temperature change activestandby switching device Download PDFInfo
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- CN211239834U CN211239834U CN201922428381.4U CN201922428381U CN211239834U CN 211239834 U CN211239834 U CN 211239834U CN 201922428381 U CN201922428381 U CN 201922428381U CN 211239834 U CN211239834 U CN 211239834U
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Abstract
The utility model provides a temperature control master-slave switching device for a medium wave transmitter, which comprises a main circuit efficacy board of the medium wave transmitter, a spare circuit efficacy board of the medium wave transmitter, a first temperature sensor, a second temperature sensor, a temperature control module and a switching module, wherein the first temperature sensor and the second temperature sensor are respectively used for detecting the temperature of the main circuit efficacy board of the medium wave transmitter and the spare circuit efficacy board of the medium wave transmitter in real time, and the output ends of the first temperature sensor and the second temperature sensor are connected with the temperature acquisition input end of the temperature control module; the power supply circuits of the main circuit power efficiency board and the standby circuit power efficiency board of the medium-wave transmitter are jointly connected to the switching module, and one switching module selects to be connected with the power supply circuit. Compared with the prior art, the utility model discloses make full use of the hardware interface of equipment self configuration, job stabilization is reliable, avoids leading to the stop broadcasting because of the trouble that generates heat, has played important effect to the safe broadcasting of transmitter.
Description
Technical Field
The utility model relates to a control by temperature change activestandby switching device of medium wave transmitter.
Background
With the continuous development of information technology, the application of the medium wave broadcast transmitter in China is more and more extensive, and the medium wave broadcast transmitter plays an important role in the development of the broadcast transmitting industry. The maintenance work is the important work content in the operation of the medium wave transmitter, so that the stability of the operation of the equipment can be ensured, and the economic benefit of the use of the equipment can be improved.
Practice proves that various faults can occur due to interference of the device and external conditions in the operation process of the medium wave transmitter, the faults are generally divided into soft faults and hard faults, the hard faults are sudden-change faults, complete faults and the like, the sudden-change faults are faults caused by sudden change of internal elements when the transmitter operates, and the complete faults are caused by damage of internal circuits of the transmitter.
Disclosure of Invention
The utility model provides a control by temperature change activestandby switching device of medium wave transmitter. The device has the characteristics of protecting the internal components of the transmitter and reducing mutation conditions, thereby reducing the broadcasting stop time and maintenance times of the transmitter and further adapting to the requirements of customers.
The utility model discloses the technical scheme who adopts as follows:
a temperature control main-standby switching device of a medium-wave transmitter comprises a main circuit efficacy board of the medium-wave transmitter, a standby circuit efficacy board of the medium-wave transmitter, a first temperature sensor, a second temperature sensor, a temperature control module and a switching module; the temperature acquisition device comprises a temperature control module, a first temperature sensor, a second temperature sensor, a first temperature sensor and a second temperature sensor, wherein the first temperature sensor and the second temperature sensor are respectively used for detecting the temperature of a main circuit efficacy board and a standby circuit efficacy board of a medium-wave transmitter in real time; the power supply loops of the main circuit power efficiency board and the standby circuit power efficiency board of the medium-wave transmitter are jointly connected to the switching module, and one switching module selects one power supply loop;
the temperature control module is also provided with a state signal input end which is used for obtaining the current state attributes of the main circuit efficacy board and the standby circuit efficacy board of the medium-wave transmitter; and a threshold judging unit is arranged in the temperature control module and used for judging whether the currently working efficacy board is over-temperature or not, and the temperature control module cuts off a power supply loop of the currently working efficacy board and switches on a power supply loop of the other efficacy board through the switching module when the temperature control module determines the over-temperature. According to the working attribute of the current efficacy board, the temperature control module judges whether the temperature is over-temperature, if so, the power supply circuit of the other efficacy board is immediately switched to, and the broadcasting stop is not caused; and the problem that a certain efficacy board is operated at an over-high temperature for a long time to cause a fault due to over-high temperature is also avoided, so that the risk of broadcasting stop is reduced.
Optionally, the first temperature sensor and the second temperature sensor are respectively installed on the main circuit power board and the standby circuit power board of the medium-wave transmitter. Therefore, the current temperature value of each efficacy plate can be accurately read, whether the efficacy plate is over-temperature or not is judged, and effective prevention is achieved.
Optionally, an identification selection unit is further disposed at the front end of the threshold determination unit, and is configured to identify and select a temperature signal of the currently operating efficacy board. And a temperature threshold value is set, the temperature value of each efficacy board is more accurately judged, and switching is performed when the temperature value exceeds the threshold value, so that the effect of the efficacy board is exerted to the maximum extent, and the maintenance frequency caused by overtemperature is reduced.
Optionally, the identification selection unit includes a digital comparator and a single-pole double-throw switch; two stationary contacts of the single-pole double-throw switch are used as temperature acquisition input ends of the temperature control module and are respectively connected with output ends of the first temperature sensor and the second temperature sensor; the moving contact of the single-pole double-throw switch is used as a control end and is connected with the output end of the digital comparator; two input ends of the digital comparator are respectively connected with state signals of the main circuit power board of the medium-wave transmitter and the standby circuit power board of the medium-wave transmitter, so that the output of the digital comparator triggers the single-pole double-throw switch to be connected with a temperature sensor corresponding to the currently working power board.
Optionally, the first temperature sensor and the second temperature sensor adopt thermocouples.
Optionally, the single-pole double-throw switch is an 86-type single-pole double-throw toggle switch.
Optionally, the digital comparator is a 74LS85 type digital comparator.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses circuit structure is simple and clear, make full use of the hardware interface of equipment self configuration, job stabilization is reliable, avoids leading to the stop broadcasting because of the trouble that generates heat, has played important effect to the safe broadcast of transmitter.
2. According to the working attribute of the current efficacy board, the temperature control module judges whether the temperature is over-temperature, if so, the temperature control module is immediately switched to a power supply loop of the other efficacy board, and the transmitter cannot be stopped; and the problem that a certain efficacy board is operated at an over-high temperature for a long time to cause a fault due to over-high temperature is also avoided, so that the risk of broadcasting stop is reduced.
3. The temperature control module is set to accurately read the current temperature value of each efficacy plate, judge whether the efficacy plate is over-temperature or not, set a temperature threshold value, more accurately judge the temperature value of each efficacy plate, switch when the temperature value exceeds the threshold value, play the role of the efficacy plate to the maximum and reduce the maintenance times due to over-temperature.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of a temperature-controlled active/standby switching device of a medium-wave transmitter according to an embodiment of the present application.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples, but the present invention is not limited to the following implementation.
The embodiment of the utility model relates to a medium wave transmitter temperature control activestandby switching device, including medium wave transmitter main road efficiency board, medium wave transmitter activestandby efficiency board, first temperature sensor, second temperature sensor, temperature control module and switching module; the temperature acquisition device comprises a temperature control module, a first temperature sensor, a second temperature sensor, a first temperature sensor and a second temperature sensor, wherein the first temperature sensor and the second temperature sensor are respectively used for detecting the temperature of a main circuit efficacy board and a standby circuit efficacy board of a medium-wave transmitter in real time; the power supply loops of the main circuit power efficiency board and the standby circuit power efficiency board of the medium-wave transmitter are jointly connected to the switching module, and one switching module selects to be connected with the power supply loop; the temperature control module is also provided with a state signal input end which is used for obtaining the current state attributes of the main circuit efficacy board and the standby circuit efficacy board of the medium-wave transmitter; the temperature control module is internally provided with a threshold judging unit used for judging whether the currently working efficacy board is over-temperature or not, and when the temperature control module determines the over-temperature, the switching module disconnects the power supply circuit of the currently working efficacy board and connects the power supply circuit of the other efficacy board. The first temperature sensor and the second temperature sensor are respectively arranged on the main circuit power board and the standby circuit power board of the medium-wave transmitter. The front end of the threshold judging unit is also provided with an identification and selection unit for identifying and selecting the temperature signal of the currently working efficacy board. The identification selection unit comprises a digital comparator and a single-pole double-throw switch; two stationary contacts of the single-pole double-throw switch are used as temperature acquisition input ends of the temperature control module and are respectively connected with output ends of the first temperature sensor and the second temperature sensor; the moving contact of the single-pole double-throw switch is used as a control end and is connected with the output end of the digital comparator; two input ends of the digital comparator are respectively connected with state signals of the main circuit power board of the medium-wave transmitter and the standby circuit power board of the medium-wave transmitter, so that the output of the digital comparator triggers the single-pole double-throw switch to be connected with a temperature sensor corresponding to the currently working power board. The first temperature sensor and the second temperature sensor adopt thermocouples. The single-pole double-throw switch adopts an 86-type single-pole double-throw toggle switch. The digital comparator adopts a 74LS85 type digital comparator.
It should be noted that the temperature control module is further provided with a state signal input end, which is used to obtain the current state attribute of the main circuit efficacy board of the medium-wave transmitter and the standby circuit efficacy board of the medium-wave transmitter, where the state attribute indicates that the current efficacy board is in a working state or in a shutdown state.
The temperature sensor can adopt a wireless temperature sensor or a wired temperature sensor, the wireless temperature sensor can adopt the principle of infrared sensing to acquire temperature information, and the application does not limit the temperature information.
Two input ends of the digital comparator are respectively connected with state signals of a main circuit efficacy board of the medium-wave transmitter and a standby circuit efficacy board of the medium-wave transmitter, so that the output of the digital comparator triggers the single-pole double-throw switch to be connected with a temperature sensor corresponding to the currently working efficacy board, the state signals are 1 or 0, wherein 1 is in a working state, 0 is in a non-working state, and both are 0 or both are 1, and the digital comparator is in a fault state and needs to be shut down for maintenance. The state signal can be collected from the switching module, and a corresponding wiring terminal can be directly led out from the efficacy board to be connected to the input end of the digital comparator.
The switching speed of the main and standby efficacy boards can be improved to the maximum limit by adopting a proper switching device, for example, the setting of a quick switching program written into a chip in the efficacy board in advance can quickly improve the switching response speed.
When the temperature control module is used for judging that the temperature of the main road efficacy board acquired by the first temperature sensor is larger than a preset temperature threshold value, the temperature control module gives a switching signal, the switching module is instantly switched to the standby road efficacy board, the standby road efficacy board power supply circuit is switched on to work, the second temperature sensor starts to acquire the temperature of the standby road efficacy board, the temperature control module continuously judges whether the temperature of the standby road efficacy board exceeds the preset temperature threshold value, if so, a signal is given, and the switching module is switched to the other path efficacy board. When the switching module is switched to the other path of efficacy board, if the previous efficacy board fails, the previous failure efficacy board can be maintained when the previous efficacy board is switched to the other path, and due to the switching of the two efficacy boards, one efficacy board cannot continuously work to cause over-temperature failure, the maintenance and broadcast stop times are reduced, the transmitter cannot be stopped, and the requirements of customers are met.
The core of the whole switching device is an intelligent temperature control module developed by our company, which can monitor the working temperature of the efficacy of the transmitter in real time through a temperature sensor arranged on a main road and a standby road, and when the temperature of the efficacy board on the main road or the standby road exceeds a preset threshold value, the switching device can be instantly switched to another efficacy board to work, so that the original efficacy board is not damaged due to overheating, and the switching device plays an important role in safe broadcasting of the transmitter.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (7)
1. A temperature control main-standby switching device of a medium-wave transmitter is characterized in that: the power board comprises a main circuit power board of a medium-wave transmitter, a standby circuit power board of the medium-wave transmitter, a first temperature sensor, a second temperature sensor, a temperature control module and a switching module; the temperature acquisition device comprises a temperature control module, a first temperature sensor, a second temperature sensor, a first temperature sensor and a second temperature sensor, wherein the first temperature sensor and the second temperature sensor are respectively used for detecting the temperature of a main circuit efficacy board and a standby circuit efficacy board of a medium-wave transmitter in real time; the power supply loops of the main circuit power efficiency board and the standby circuit power efficiency board of the medium-wave transmitter are jointly connected to the switching module, and one switching module selects one power supply loop;
the temperature control module is also provided with a state signal input end which is used for obtaining the current state attributes of the main circuit efficacy board and the standby circuit efficacy board of the medium-wave transmitter; the temperature control module is internally provided with a threshold judging unit used for judging whether the currently working efficacy board is over-temperature or not, and when the temperature control module determines the over-temperature, the switching module disconnects the power supply loop of the currently working efficacy board and connects the power supply loop of the other efficacy board.
2. The temperature-controlled active-standby switching device of a medium-wave transmitter of claim 1, wherein: the first temperature sensor and the second temperature sensor are respectively arranged on the main circuit power board and the standby circuit power board of the medium-wave transmitter.
3. The temperature-controlled active-standby switching device of a medium-wave transmitter of claim 1, wherein: and the front end of the threshold judgment unit is also provided with an identification selection unit for identifying and selecting the temperature signal of the currently working efficacy board.
4. The temperature-controlled active-standby switching device of a medium-wave transmitter of claim 3, wherein: the identification selection unit comprises a digital comparator and a single-pole double-throw switch; two stationary contacts of the single-pole double-throw switch are used as temperature acquisition input ends of the temperature control module and are respectively connected with output ends of the first temperature sensor and the second temperature sensor; the moving contact of the single-pole double-throw switch is used as a control end and is connected with the output end of the digital comparator; two input ends of the digital comparator are respectively connected with state signals of the main circuit power board of the medium-wave transmitter and the standby circuit power board of the medium-wave transmitter, so that the output of the digital comparator triggers the single-pole double-throw switch to be connected with a temperature sensor corresponding to the currently working power board.
5. The temperature-controlled main-standby switching device of a medium-wave transmitter according to claim 1 or 2, characterized in that: the first temperature sensor and the second temperature sensor adopt thermocouples.
6. The temperature-controlled active-standby switching device of a medium-wave transmitter of claim 4, wherein: the single-pole double-throw switch adopts an 86-type single-pole double-throw toggle switch.
7. The temperature-controlled active-standby switching device of a medium-wave transmitter of claim 4, wherein: the digital comparator adopts a 74LS85 type digital comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922428381.4U CN211239834U (en) | 2019-12-27 | 2019-12-27 | Medium wave transmitter control by temperature change activestandby switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922428381.4U CN211239834U (en) | 2019-12-27 | 2019-12-27 | Medium wave transmitter control by temperature change activestandby switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211239834U true CN211239834U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922428381.4U Active CN211239834U (en) | 2019-12-27 | 2019-12-27 | Medium wave transmitter control by temperature change activestandby switching device |
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| Country | Link |
|---|---|
| CN (1) | CN211239834U (en) |
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- 2019-12-27 CN CN201922428381.4U patent/CN211239834U/en active Active
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