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Mobile terminal, electronic device and serial port transmission method and system

A technology for electronic equipment and mobile terminals, applied in the field of serial transmission systems, can solve the problems of inability to realize master/slave communication mode, change circuits, etc., and achieve the effects of improving stability and reliability and reducing power consumption

Active Publication Date: 2015-05-27
SHANGHAI SIMCOM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects that the existing mobile terminal and electronic equipment adopt the Mini USB mode to transmit data, the circuit needs to be greatly changed, and the RS232 peer-to-peer mode cannot realize the master / slave communication mode. Serial port transmission method of mobile terminal and electronic equipment capable of realizing interactive transmission of data by amplitude changing circuit

Method used

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  • Mobile terminal, electronic device and serial port transmission method and system
  • Mobile terminal, electronic device and serial port transmission method and system
  • Mobile terminal, electronic device and serial port transmission method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]There is a mobile phone and a sphygmomanometer, and the sphygmomanometer measures the user's high pressure of 90 and low pressure of 60 after being used by the user. The measured data is now transmitted from the sphygmomanometer to the mobile phone through the serial port transmission method between the mobile terminal and the electronic device provided by the present invention, see figure 1 ,Methods as below:

[0045] Step 11. A first serial port of the mobile phone sends a connection request to a second serial port of the sphygmomanometer every second.

[0046] Step 12. The second serial port receives the connection request, and sends to the first serial port first information indicating that data will be sent soon.

[0047] Step 13. The first serial port receives the first information, and sends a second message indicating that it is ready to receive data to the second serial port, and stops sending the connection request.

[0048] Step 14, the second serial port re...

Embodiment 2

[0074] There is a mobile phone and a sphygmomanometer, and the sphygmomanometer measures the user's high pressure of 90 and low pressure of 60 after being used by the user. The measured data is transmitted from the blood pressure meter to the mobile phone. see image 3 , the serial port transmission method between the mobile phone and the sphygmomanometer is as follows:

[0075] Step 20. Determine whether the first serial port of the mobile phone has a DTR (Data Terminal Ready) signal. If yes, it means that the mobile phone and the sphygmomanometer are successfully connected, and execute step 21. If not, end the process.

[0076] Step 21, the first serial port sends a connection request to the second serial port of the sphygmomanometer every 1 second.

[0077] Step 22. The second serial port receives the connection request, and judges whether a parameter of the sphygmomanometer indicating that there is data transmission is 1, and if so, sends a first parameter indicating tha...

Embodiment 3

[0089] This embodiment is basically the same as Embodiment 2, the difference is that, see Figure 4 :

[0090] Step 22 is: the second serial port receives the connection request, and judges whether the data to be sent has been marked, and if so, ends the process; if not, sends the first information to the first serial port.

[0091] Step 26 is: the second serial port judges whether the third information is received within a period of time, if yes, mark the data, if not, execute step 27.

[0092]The first serial port and the second serial port in this embodiment are basically the same as the first serial port and the second serial port in Embodiment 2, the difference is that the second serial port is used to send the connection request at the first serial port After receiving the connection request, judge whether the data to be sent has been marked, if so, end the operation, if not, send the first information to the first serial port; send the first message at the first serial...

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Abstract

The invention discloses a mobile terminal, an electronic device and a serial port transmission method and system. The serial port transmission method includes the steps: transmitting a connecting request to a second serial port of the electronic device by a first serial port of the mobile terminal every a time interval; transmitting first information indicating data transmission to the first serial port by the second serial port; transmitting second information indicating data receiving preparation to the second serial port by the first serial port, and stopping transmitting the connecting request; transmitting data to the first serial port by the second serial port; transmitting third information indicating received data to the second serial port by the first serial port; judging whether the third information is received in a time period by the second serial port or not, finishing a process if the third information is received in the time period, transmitting the first information to the first serial port by the second serial port if not, receiving the first information by the first serial port, and transmitting the second information to the second serial port. A circuit does not need to be largely changed, the data can be interactively transmitted, and the method has the advantages of reliability and stability.

Description

technical field [0001] The invention relates to a mobile terminal, an electronic device, a serial port transmission method between the mobile terminal and the electronic device, and a serial port transmission system between the mobile terminal and the electronic device. Background technique [0002] Traditional portable electronic medical devices and mobile phones are non-intelligent low-power devices, generally powered by batteries, with a working voltage of 3.0-4.0V, and the working voltage of its internal data transmission circuit is generally around 3.0V. If you want to transfer data, you usually encounter the following difficulties: [0003] 1) If the universal Mini USB (Mini Universal Serial Bus, an interface frequently used in digital cameras, camcorders, mobile hard disks, etc.) mode is used for data communication between electronic medical equipment and mobile phones, one of them must use Master mode, the other party adopts slave mode, and the party as master mode ...

Claims

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Application Information

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IPC IPC(8): G06F13/38
CPCG06F13/4282G06F2213/0002
Inventor 姜红
Owner SHANGHAI SIMCOM LTD