Minitype code table

Abstract

The invention discloses a minitype code table, which comprises a host code table, a counting device and a magnetic device, wherein the host code table comprises a receiver, a programmable logic controller (PLC), a storage, a displayer and an input key; the counting device comprises a magnetic reed switch, a sensor and a transmitter; the external diameters of the wheels of a bicycle are input into the PLC in advance; the magnetic reed switch is controlled to be closed and opened by the magnetic device; the closing and opening signal of the magnetic reed switch is received by the sensor, and is sent to the transmitter; the signal is sent by the transmitter, and the signal sent by the transmitter is received by the receiver and is sent to the PLC; each travel mileage, total accumulation mileage, instantaneous velocity, average speed per hour, highest speed per hour, travel time, present moment indication (watch function), heat consumed by sports and the like are worked out by the PLC according to the sent signal and are displayed through the displayer. By the setting of the magnetic reed switch, the wireless transmitter and the wireless receiver in the minitype code table, the size of the product is shortened, and the application range of the minitype code table disclosed by the invention is broadened through wireless connection. The minitype code table can be applied to sports equipment, such as bicycles, electric vehicles and the like with different types.

Description

technical field [0001] The invention relates to a stopwatch, in particular to a miniature stopwatch used for sports equipment such as bicycles, mopeds or electric vehicles. Background technique [0002] With the continuous improvement of people's living standards, bicycles are not only tools for transportation and transportation, but their auxiliary functions are becoming more and more important. Bring more health and happiness to everyone. As a major auxiliary tool for bicycles, the bicycle computer can calculate the speed and kilometers of the bicycle, so that the bicycle movement can be quantified. [0003] However, the current bicycle stopwatch generally uses a photoelectric sensor to output high and low pulses to calculate the vehicle speed. When in use, an aluminum disc is extended at the axis of the rear wheel of the bicycle in a direction parallel to the tangential plane of the wheel rotation, and several holes are dug out at the edge of the aluminum disc. , put th...

AI Technical Summary

Problems solved by technology

[0004] However, the photoelectric sensor in the above-mentioned stopwatch is large in size and high in price, and needs to be connected by a long signal line between the photoelectric sensor and the main stopwatch. For small cars, if the signal line is too long, there will be an extra end in front of the handlebar, which will affect the appearance and be easily scratched; for large cars, there will be a problem that the signal line is too short

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