Wiring control method and device for switching sensed object
A control device and control method technology, applied in the direction of measuring device, linear/angular velocity measurement, speed/acceleration/shock measurement, etc., can solve the problems of increased, increased, and not small interference between circuits, and achieve the effect of reducing sensing lines
Inactive Publication Date: 2008-09-17
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Problems solved by technology
However, this kind of design has the following disadvantages, that is, when the number of fans increases, the lines on the main control board will also increase accordingly; It will cause a lot of problems. With the increase of the lines, it can only be solved by increasing the area of the main control board 2 or reducing the distance between the lines, and the reduction of the distance between the lines will increase the interference between the circuits.
In addition, the increase of lines connected to the main control board will also hinder the flow of wind and affect the heat dissipation effect.
The main control board 2 is usually equipped with very important components, such as chips such as CPU, so the impact of the occurrence of the above problems may be more serious
Method used
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[0020] As shown in FIG. 2 , it is a schematic diagram of the wiring control method of the present invention. In the solution provided by the present invention, a slave control board 4 is added between the main control board 2 and the sensing object 1 . The sensing object 1 is directly connected to the slave control board through the sensing line 3, and the slave control board 4 is connected to the main control board 2 through the sensing line 3 and the control line 5, so that the line connected to the main control board 2 is obvious Reduced, only one pair of sensing lines and one pair of control lines 5. The slave control board can receive the sensing information of the sensing object through the sensing line 3, and can transmit the sensing information to the main control board 2 through the sensing line, wherein the control line 5 can control the slave control board 4 to switch Corresponding to the sensing object 1 , the sensing information obtained by the main control board...
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This invention is a kind of wiring control equipment o switching sensitive object. It can switch several sensitive objects. The equipment comprises a main control board, it can receive and store the sensitive information from the object, a sub control board, and it is connected with the main control board by sense wire and control line, and connected with the object by sense wire in order to receive the sensitive information from the object. The sub control board includes a control circuit with counter and a switch circuit with data selector. Using the equipment and method of this invention, we can easily get the sensing of several sensitive objects, and the sense circuit of the main board will be less.
Description
【Technical field】 [0001] The invention relates to a sensing wiring control method and device, in particular to a wiring control method and device capable of switching sensing objects. 【Background technique】 [0002] In highly integrated electronic equipment, heat dissipation is an important issue. If the heat dissipation is not good, the temperature will be too high, which may cause damage to the electronic equipment. It is especially important to monitor cooling components (such as cooling fans). Some ICs that can sense fan speed have appeared in the industry, which can monitor whether the fan is operating normally through related software. Most of the current systems have designs for sensing fan speed. For example, the State Intellectual Property Office of the People's Republic of China made public on August 9, 2000, the publication number is CN1262465A, and the patent titled "cooling fan speed monitoring device" discloses a cooling fan speed monitoring device installed o...
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IPC IPC(8): G06F1/20G01P1/00G01P3/00
Inventor 吴政锰
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD