Device and method for extending analog-to-digital conversion channel of remote positioning module
A technology of remote positioning and analog-to-digital conversion, applied in electrical digital data processing, instruments, etc., can solve problems such as single interface, inability to meet multi-channel, multi-type detection at the same time, achieve low cost, solve single data acquisition, and reliability high effect
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Embodiment 1
[0026] Such as figure 1 The shown remote positioning module expands the analog-to-digital conversion channel device, including an analog-to-digital channel selection chip, a remote positioning module and a power module, and the data communication interface of the analog-to-digital channel selection chip is connected to the analog-to-digital conversion interface of the remote positioning module through a line , the control input ends of the modulus channel selection chip are respectively connected to the input / output ends of the remote positioning module through lines;
[0027] The modulus channel selection chip is configured to read the value of the register of its corresponding data communication interface according to the address code sent by the remote positioning module, and then send it to the remote positioning module;
[0028] The remote positioning module is configured to send an address code to the modulus channel selection chip, and then process the return value of t...
Embodiment 2
[0036] On the basis of the above embodiments, the present invention provides a method for extending the analog-to-digital conversion channel of the remote positioning module, wherein the steps are as follows:
[0037] Step 1: After the system is running, the remote positioning module sends an address code to the SP8T switch chip;
[0038] Step 2: The SP8T switch chip reads the value of the register of the corresponding data communication interface according to the address code sent by the remote positioning module, and returns the value to the remote positioning module;
[0039] Step 3: Change the address code;
[0040] Step 4: Repeat steps 1-3 until the remote positioning module polls the eight-way data communication interface of the single-pole eight-throw switch chip, and then eight pieces of data can be obtained;
[0041] Step 5: The remote positioning module writes the obtained eight pieces of data in turn into its internal storage manager or EEPROM memory chip for stora...
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