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Transmission mode and device in wireless outgoing call, automatic frequency conversion, and segmented request signal

A technology for querying signals and transmission methods, which is applied in the field of wireless calling industry, can solve the problems of short service life, unsuitable promotion, inconvenient operation, etc., and achieve the effect of low cost, easy implementation and promotion, and less external interference

Inactive Publication Date: 2006-12-06
张建海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Another object of the present invention is to provide a wireless call automatic frequency conversion segmentation query signal transmission method and its device which are low in cost, easy to implement and popularize, convenient to operate, less affected by external interference, and long in service life; There are technical problems such as high cost, inconvenient operation, short service life, and unsuitable promotion.

Method used

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  • Transmission mode and device in wireless outgoing call, automatic frequency conversion, and segmented request signal
  • Transmission mode and device in wireless outgoing call, automatic frequency conversion, and segmented request signal
  • Transmission mode and device in wireless outgoing call, automatic frequency conversion, and segmented request signal

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Embodiment

[0020] Embodiment: wireless call automatic frequency conversion subsection inquiry signal transmission device (referring to accompanying drawing), comprise several transmitters and a receiver, be provided with two sets of wireless transceiver units of channel f1 and channel f2 on the receiver; chip U2 and attachment The f1 channel wireless transceiver unit formed by the antenna on the PCB is composed of the f2 channel wireless transceiver unit by the chip U2A and the antenna attached to the PCB, and the chip U2 and the chip U2A are connected with the microprocessor U3; the transmitter includes a power supply, a power supply The connected chip U0 and the antenna attached to the PCB form a wireless transceiver unit, which can change the communication frequency under the control of the microprocessor U1. The chips U2, U2A and U0 are all single-chip radio frequency transceiver nRF905; the working voltage is 1.9~3.6V, and works on three ISM (industry, science and medicine) channels ...

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Abstract

The invention improves transmission mode of segmented request signal and equipment in automatic frequency conversion of wireless call. System is composed of multiple senders and a receiver. All senders possess identical system ID code, and each sender possesses unique address code inside system. Radio frequency transceiver I single chip is adopted in sender and receiver. All senders are divided into segments according to addresses. Using means of display and speech hint, receiver reduces information sent from sender in time. The system prevents phenomenon of choking information in wireless call system by caused that multiple senders send signal at same time effectively. Advantages are: reliable, ordered transmission in channel competition, low cost, less external interference, and long service life.

Description

technical field [0001] The invention relates to the wireless call industry, in particular to an improvement on a wireless call automatic frequency conversion segmentation query signal transmission method and a device thereof. It is especially suitable for occasions where multiple transmitters transmit signals simultaneously in a wireless calling system. Background technique [0002] In the catering and other service industries, most customers want to call for service through language gestures, etc. It is difficult to handle all the calls in noisy places, which greatly affects the service quality and easily causes customers to complain. [0003] A fundamental problem generally exists in existing wireless call systems, that is, the phenomenon that information is flooded when more than one pager sends call instructions at the same time or at a very close time. to solve the problem. For example, Chinese Invention Patent Authorization Announcement No. CN1245369A, Invention Name...

Claims

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Application Information

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IPC IPC(8): H04B5/04
Inventor 张建海
Owner 张建海
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