METHOD FOR IMPROVING LUMINOUS INTENSITY ADAPTABILITY AND DEVICE THEREOF

摘要

The invention discloses a method for improving luminous intensity adaptability and a device thereof, relating to photo-electronic communication field. In the method, the device is configured with more than one level load resistors, the device collects voltage value and if the device collects predetermined numbers of voltage values which meet some requirement, it computes an average value of all collected voltage values, sets voltage value according to the average value, determines whether the set voltage is satisfied with a predetermined requirement, if yes, collects data according to the set voltage; otherwise, switches the load resistor according to a predetermined rule, in which the load voltage has influence on collecting voltage. The invention has advantages of improving luminous intensity adaptability of a screen when collecting optical signal and reducing rate of error codes.

主权项

1. A method for improving luminous intensity adaptability of an optical signal collecting device, wherein the device controls a predetermined load resistor to conduct upon receiving a self-adaptability request, the device collects and sets voltage upon being satisfied with a predetermined condition, and the load resistor has an influence on collecting of the voltage, the method comprising:
Step a, determining whether a self-adaptability is failed, if yes, restoring modifications on flags, variables and load resistors, prompting error and quitting; otherwise, collecting a voltage value and if the device stores a last collected voltage value, going to Step b; otherwise going to Step c; Step b, comparing currently collected voltage value with a last collected voltage value, if difference between the two values is smaller than a predetermined voltage value, going to Step c; otherwise replacing the last collected voltage value with the currently collected voltage value, clearing a voltage Value buffer and going to Step c; Step c, adding the currently collected voltage value to the voltage value buffer and determining whether number of voltage values stored in the voltage value buffer reaches a first predetermined value, if yes, going to Step d; otherwise, quitting and waiting for next entering; Step d, computing an average value of all voltage values stored in the voltage value buffer and determining whether a first voltage is reached, if yes, going to Step e; otherwise storing the computed average value as first voltage and going to Step f; Step e, comparing the computed average value with the first voltage stored in the device, if difference between the two values is smaller than a second predetermined voltage value, replacing the first voltage stored in the device with the computed average value and going to Step f; if difference between the two values is not smaller than the second predetermined voltage value and the later is greater, setting voltage according to a first predetermined rule and going to Step f; if difference between the two values is not smaller than the second predetermined voltage value and the former is greater, setting the voltage according to a second predetermined rule and going to Step f; Step f, determining whether the first voltage, a second voltage and a third voltage are all collected, if yes, going to Step g; otherwise, quitting and waiting for next entering; Step g, determining whether the first voltage, the second voltage and the third voltage stored in the device are all satisfied with a predetermined requirement, if yes, quitting and the device waiting for receiving data; otherwise going to Step h; and Step h, determining whether a predetermined condition of switching resistor is satisfied with, if yes, checking for status of the current load resistor, switching into a next load resistor according to a predetermined rule, quitting and waiting for next entering and collecting voltage according to the next load resistor; otherwise, the self-adaptability being failed, clearing the first voltage, the second voltage and the third voltage stored in the device and quitting; wherein the predetermined condition of switching resistor is that times of switching resistor does not reach a second predetermined value.