Fan controller

Abstract

The present invention discloses a fan controller, comprising: a main control module, a switching power supply, a human-machine interface, a TCP / IP interface and an RS232 interface; the switching power supply, the human-machine interface, the TCP / IP interface and the RS232 interface are connected to the main control module; the fan controller is connected to a transmitter through a switch for communication; the transmitter comprises a control module, a cooling fan and a speed sensor; the cooling fan and the speed sensor are connected to the control module; the speed sensor is installed on the cooling fan to detect the speed of the cooling fan, and sends the detected speed information to the control module; the control module sends the received speed information to the main control module of the fan controller; the main control module sends a shutdown signal to the control module when the speed information is lower than the preset speed; the control module performs a shutdown operation on the transmitter after receiving the shutdown signal. The fan controller provided by the present invention can detect the working state of the cooling fan in the transmitter in real time, and cut off the transmitter in time when the cooling fan fails.

Description

Technical Field

[0001] The invention relates to a fan controller. Background Art

[0002] High-power radio and television transmitters generate a lot of heat when working. They have the following disadvantages:

[0003] 1. Long-term high-temperature operation will accelerate the aging of electronic components in the equipment and reduce the service life of the equipment;

[0004] 2. High temperature environment will affect the working performance of the transmitter;

[0005] 3. Long-term high-temperature operation may cause the circuits and electronic components in the transmitter to burn out.

[0006] Therefore, in order to ensure the normal operation of the transmitter, a cooling fan needs to be arranged in the transmitter. However, when the cooling fan fails, the above-mentioned disadvantages are still unavoidable. Summary of the invention

[0007] The present invention provides a fan controller to solve the above-mentioned technical problems, and specifically adopts the following technical solutions:

[0008] A fan controller, comprising: a main control module, a switching power supply, a human-machine interface, a TCP / IP interface and an RS232 interface;

[0009] The switch power supply, human-machine interface, TCP / IP interface and RS232 interface are connected to the main control module;

[0010] The fan controller is connected to the transmitter for communication via a switch;

[0011] The transmitter includes a control module, a cooling fan and a speed sensor;

[0012] The cooling fan and speed sensor are connected to the control module;

[0013] The speed sensor is installed on the cooling fan to detect the speed of the cooling fan and send the detected speed information to the control module;

[0014] The control module sends the received speed information to the main control module of the fan controller;

[0015] The main control module sends a stop signal to the control module when the speed information is lower than the preset speed;

[0016] The control module shuts down the transmitter after receiving the shutdown signal.

[0017] Furthermore, the main control module sends a shutdown signal to the control module when the speed information is lower than the preset speed for a preset time.

[0018] Further, the transmitter further comprises a first temperature sensor;

[0019] The first temperature sensor is used to be connected to the control module to detect the temperature inside the switch and send the detected first temperature information to the control module;

[0020] The control module sends the received first temperature information to the main control module of the fan controller;

[0021] The main control module controls the cooling fan of the transmitter according to the first temperature information.

[0022] Furthermore, when the first temperature information is greater than a preset temperature, the main control module controls the transmitter to operate in a first operating mode, the main control module sends a first control instruction to the control module, and after receiving the first control instruction, the control module controls the cooling fan to operate at a first speed.

[0023] Furthermore, when the first temperature information is less than or equal to the preset temperature, the main control module controls the transmitter to operate in the second working mode, the main control module sends a second control instruction to the control module, and after receiving the second control instruction, the control module controls the cooling fan to operate at a second speed, which is less than the first speed.

[0024] Further, when the wind generator operates in the first mode, the main control module sends a shutdown signal to the control module when the speed information is lower than a third speed, and the third speed is greater than the second speed and less than the first speed;

[0025] The control module shuts down the transmitter after receiving the shutdown signal.

[0026] Further, when the wind generator operates in the second mode, the main control module sends a shutdown signal to the control module when the rotation speed information is lower than a fourth rotation speed, and the fourth rotation speed is lower than the second rotation speed;

[0027] The control module shuts down the transmitter after receiving the shutdown signal.

[0028] Further, the transmitter further comprises a second temperature sensor;

[0029] The second temperature sensor is used to be connected to the control module to detect the ambient temperature outside the switch and send the detected second temperature information to the control module;

[0030] The control module sends the received second temperature information to the main control module of the fan controller;

[0031] The main control module controls the cooling fan of the transmitter according to the second temperature information.

[0032] Furthermore, when the wind transmitter is operating in the second mode, the main control module forces the transmitter to switch from the second operating mode to the first operating mode when the second temperature information exceeds the warning temperature. The warning temperature is greater than the preset temperature. The main control module sends a forced switching instruction to the control module. After receiving the forced control instruction, the control module controls the cooling fan to run at the first speed.

[0033] Further, the fan controller includes a housing;

[0034] The main control module and the switching power supply are arranged in the housing;

[0035] The human-machine interface, TCP / IP interface and RS232 interface are arranged on the housing.

[0036] The invention is beneficial in that the fan controller provided can detect the working status of the cooling fan in the transmitter in real time and cut off the transmitter in time when the cooling fan fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0038] Figure 1 It is a schematic diagram of a fan controller of the present invention. DETAILED DESCRIPTION

[0039] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0040] like Figure 1The figure shows a fan controller, which is used in a high-power broadcast television transmitter to detect the working status of the fan in the transmitter. The fan controller mainly includes: a main control module, a switching power supply, a human-machine interface, a TCP / IP interface and an RS232 interface. The switching power supply, the human-machine interface, the TCP / IP interface and the RS232 interface are connected to the main control module. The fan controller is connected to the transmitter through a switch. The transmitter includes a control module, a cooling fan and a speed sensor. The cooling fan and the speed sensor are connected to the control module. The speed sensor is installed on the cooling fan to detect the speed of the cooling fan and send the detected speed information to the control module. The control module sends the received speed information to the main control module of the fan controller. The main control module sends a shutdown signal to the control module when the speed information is lower than the preset speed. After receiving the shutdown signal, the control module shuts down the transmitter. In this way, when the cooling fan fails, the fan controller can shut down the transmitter to prevent damage to the transmitter.

[0041] As a preferred embodiment, the main control module sends a shutdown signal to the control module when the speed information is lower than the preset speed for a preset time. That is, the shutdown control will only be executed if the cooling fan continues to operate at a speed lower than the preset speed for a certain period of time.

[0042] As a preferred embodiment, the transmitter further includes a first temperature sensor. The first temperature sensor is used to connect to the control module to detect the temperature inside the switch and send the detected first temperature information to the control module. The control module sends the received first temperature information to the main control module of the fan controller. The main control module controls the cooling fan of the transmitter according to the first temperature information.

[0043] Specifically, when the first temperature information is greater than the preset temperature, the main control module controls the transmitter to work in the first working mode, the main control module sends a first control instruction to the control module, and the control module controls the cooling fan to operate at a first speed after receiving the first control instruction. When the first temperature information is less than or equal to the preset temperature, the main control module controls the transmitter to work in the second working mode, the main control module sends a second control instruction to the control module, and the control module controls the cooling fan to operate at a second speed after receiving the second control instruction, and the second speed is less than the first speed.

[0044] It is understandable that when the temperature inside the device is high, a larger amount of cooling air is required. Therefore, in the present application, the speed of the cooling fan is controlled according to the temperature inside the transmitter. The higher the temperature, the greater the speed.

[0045] As a preferred implementation, when the wind transmitter is working in the first mode, the main control module sends a shutdown signal to the control module when the speed information is lower than the third speed, and the third speed is greater than the second speed and less than the first speed. The control module performs a shutdown operation on the transmitter after receiving the shutdown signal. When the wind transmitter is working in the second mode, the main control module sends a shutdown signal to the control module when the speed information is lower than the fourth speed, and the fourth speed is lower than the second speed. The control module performs a shutdown operation on the transmitter after receiving the shutdown signal.

[0046] As a preferred implementation, the transmitter further includes a second temperature sensor.

[0047] The second temperature sensor is arranged outside the switch and connected to the control module to detect the ambient temperature outside the switch and send the detected second temperature information to the control module. The control module sends the received second temperature information to the main control module of the fan controller.

[0048] The main control module controls the cooling fan of the transmitter according to the second temperature information.

[0049] Specifically, when the wind transmitter is operating in the second mode, the main control module forces the transmitter to switch from the second operating mode to the first operating mode when the second temperature information exceeds the warning temperature. When the warning temperature is greater than the preset temperature, the main control module sends a forced switching instruction to the control module. After receiving the forced control instruction, the control module controls the cooling fan to run at the first speed.

[0050] It is understandable that when the temperature outside the transmitter is very high, even if the temperature inside the transmitter is not too high, the temperature inside the transmitter will exceed the preset temperature in a short time due to the high external temperature. Therefore, in such a case, the speed of the cooling fan is increased in advance to avoid waiting until the temperature inside the transmitter is too high before increasing the speed.

[0051] As a preferred embodiment, the fan controller comprises a housing, a main control module and a switch power supply are arranged in the housing, and a human-machine interface, a TCP / IP interface and an RS232 interface are arranged on the housing.

[0052] The human-machine interface includes an LCD screen, buttons, indicator lights, and related control switches.

[0053] It is understandable that the housing of the fan controller is also provided with conventional components such as a power socket.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A fan controller, characterized in that: Contains: main control module, switching power supply, human-machine interface, TCP / IP interface and RS232 interface; The switching power supply, the human-machine interface, the TCP / IP interface and the RS232 interface are connected to the main control module; The fan controller is communicatively connected with the transmitter via a switch; The transmitter includes a control module, a cooling fan and a rotation speed sensor; The cooling fan and the speed sensor are connected to the control module; The speed sensor is installed on the cooling fan to detect the speed of the cooling fan and send the detected speed information to the control module; The control module sends the received speed information to the main control module of the fan controller; The main control module sends a stop signal to the control module when the speed information is lower than the preset speed for a preset time; The control module performs a shutdown operation on the transmitter after receiving the shutdown signal; The transmitter also includes a first temperature sensor; The first temperature sensor is used to be connected to the control module to detect the temperature inside the transmitter and send the detected first temperature information to the control module; The control module sends the received first temperature information to the main control module of the fan controller; The main control module controls the cooling fan of the transmitter according to the first temperature information; When the first temperature information is greater than a preset temperature, the main control module controls the transmitter to operate in a first operating mode, the main control module sends a first control instruction to the control module, and the control module controls the cooling fan to operate at a first speed after receiving the first control instruction; When the first temperature information is less than or equal to the preset temperature, the main control module controls the transmitter to operate in the second operating mode, the main control module sends a second control instruction to the control module, and the control module controls the cooling fan to operate at a second speed after receiving the second control instruction, and the second speed is less than the first speed; The transmitter also includes a second temperature sensor; The second temperature sensor is used to be connected to the control module to detect the ambient temperature outside the transmitter and send the detected second temperature information to the control module; The control module sends the received second temperature information to the main control module of the fan controller; The main control module controls the cooling fan of the transmitter according to the second temperature information; When the transmitter is operating in the second operating mode, the main control module forcibly controls the transmitter to switch from the second operating mode to the first operating mode when the second temperature information exceeds the warning temperature, and the warning temperature is greater than the preset temperature. The main control module sends a forced switching instruction to the control module, and the control module controls the cooling fan to operate at the first speed after receiving the forced control instruction.

2. The fan controller according to claim 1, characterized in that: When the transmitter operates in the first operating mode, the main control module sends the shutdown signal to the control module when the rotation speed information is lower than a third rotation speed, and the third rotation speed is greater than the second rotation speed and less than the first rotation speed; The control module performs a shutdown operation on the transmitter after receiving the shutdown signal.

3. The fan controller according to claim 2, characterized in that: When the transmitter operates in the second operating mode, the main control module sends the shutdown signal to the control module when the rotation speed information is lower than a fourth rotation speed, and the fourth rotation speed is lower than the second rotation speed; The control module performs a shutdown operation on the transmitter after receiving the shutdown signal.

4. The fan controller according to claim 1, characterized in that: The fan controller comprises a housing; The main control module and the switching power supply are arranged in the housing; The human-machine interface, the TCP / IP interface and the RS232 interface are arranged on the housing.

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