CN205281223U - Long -range serial ports control module based on wiFi - Google Patents
Long -range serial ports control module based on wiFi Download PDFInfo
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- CN205281223U CN205281223U CN201620042332.0U CN201620042332U CN205281223U CN 205281223 U CN205281223 U CN 205281223U CN 201620042332 U CN201620042332 U CN 201620042332U CN 205281223 U CN205281223 U CN 205281223U
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Abstract
The utility model discloses a long -range serial ports control module based on wiFi, a serial communication port, include: wiFi module, voltage stabilizing module and TTL serial ports change RS485 module, the wiFi module is formed by ESP8266WIFI chip package, voltage stabilizing module is the wiFi module and the TTL serial ports changes the RS485 module power supply, TTL serial ports commentaries on classics RS485 module's TXD mouth connects the RXD mouth of wiFi module, TTL serial ports commentaries on classics RS485 module's RXD mouth connects the TXD mouth of wiFi module. The utility model discloses but the wide application in between the host computer of industrial equipment and the next machine, intelligent terminal is connected with radio communication between the tame electric installation. If be used for the family, can pass through the general IO direct control family electric installation of wiFi chip, or monitor tame electric installation and whether open. If be used for industry, can directly be connected through TTL serial ports commentaries on classics RS485 module and PLC, touch -sensitive screen or other control module of industrial equipment. With current wired, wireless connection is technological compares, the utility model has the characteristics of the commonality is good, the connection is efficient, maintain that the debugging is convenient, quote with low costs etc.
Description
Technical field
The utility model relates to network access technique field, particularly relates to a kind of remote serial port control module based on WiFi.
Background technology
Programmable logic controller (PLC, ProgrammableLogicController) take microprocessor as core, a kind of universal industrial automatic control device that integrated computer technology, automatic control technology and development communication technologies are got up. But, current Industry Control system is all the cable network based on PLC, not only connects up that trouble, consumptive material are many, cost cost height, and debugs, safeguards very inconvenience, once equipment break down can not tracking in time process.
Along with the development of society, WiFi technology obtains to be applied more and more widely. At present, most cities family, public place, city have WiFi to exist, and development and Design is a kind of can utilize now already present WiFi environment to realize remote monitoring or the instruction of various home appliance, also to have very important and far-reaching realistic meaning.
Practical novel content
The purpose of this utility model is to provide a kind of can be converted to the wired connection between serial ports with serial ports that wireless WiFi is connected, stable signal transmission, application cost is low, the remote serial port control module that can be widely used in the environment such as factory/family.
For reaching above object, the utility model adopts following technical scheme.
Based on the remote serial port control module of WiFi, it is characterized in that, comprise: WiFi module, Voltage stabilizing module and TTL serial ports turn RS485 module, described WiFi module is become by ESP8266WIFI Chip Packaging, described Voltage stabilizing module is that WiFi module and TTL serial ports turn RS485 module for power supply, the TXD mouth that described TTL serial ports turns RS485 module connects the RXD mouth of WiFi module, and the RXD mouth that described TTL serial ports turns RS485 module connects the TXD mouth of WiFi module.
As with improvement, the antenna of described WiFi module is PCB antenna, IPEX interface antenna or stamp hole interface antenna.
As with improvement, described WiFi module is circumscribed with flash memory, ESP8266WIFI chip carry and as equipment in unique treater time directly start from external flash memory.
As with improvement, described WiFi module is embedded with operation sequence of control, described operation sequence of control is become by LabVIEW language compilation.
As with improvement, during application, installing the first remote serial port control module and the 2nd remote serial port control module on upper computer and lower computer respectively, between upper computer and lower computer, signal transmission link is: the TTL serial ports of WiFi module the 2nd remote serial port control module that the TTL serial ports of upper computer first remote serial port control module turns WiFi module the 2nd remote serial port control module of RS485 module first remote serial port control module turns RS485 module lower computer.
As with improvement, described upper computer, lower computer are all the industrial equipments of band PLC control device.
As with improvement, described upper computer is intelligent terminal, described lower computer is the home appliance of tape-controller.
As with improvement, described intelligent terminal comprises: notebook computer, smart mobile phone, panel computer or desktop computer.
Compared with prior art, the utility model has following useful effect: turn together with RS485 module integration by WiFi module and TTL serial ports, and select ESP8266WiFi chip as the core of WiFi module, can be widely used between the upper computer of industrial equipments and lower computer, radio communication between intelligent terminal and home appliance is connected. If for family, it is possible to directly control home appliance by the general purpose I/O of WiFi chip, or monitor whether home appliance is opened. If for industry, it is possible to directly turn the PLC of RS485 module and industrial equipments, touch-screen or other control modules by TTL serial ports and be connected. Compared with, wireless connect technology wired with existing, the utility model has that versatility is good, joint efficiency height, to safeguard debugging convenient, quotes the features such as cost is low.
Accompanying drawing explanation
Fig. 1 show the remote serial port control module structural representation based on WiFi that the utility model provides.
Description of reference numerals:
1:WiFi module, 2: Voltage stabilizing module, 3:TTL serial ports turn RS485 module, 4: circuit card.
Embodiment
Understand essence of the present utility model better for convenience of those skilled in the art, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
As shown in Figure 1, a kind of remote serial port control module based on WiFi, comprise: the WiFi module 1, Voltage stabilizing module 2 and the TTL serial ports that are arranged on same circuit card 4 turn RS485 module 3, described WiFi module 1 is become by ESP8266WIFI Chip Packaging, described Voltage stabilizing module 2 is powered for WiFi module 1 and TTL serial ports turn RS485 module 3, the TXD mouth that described TTL serial ports turns RS485 module 3 connects the RXD mouth of WiFi module 1, and the RXD mouth that described TTL serial ports turns RS485 module 3 connects the TXD mouth of WiFi module 1.
Wherein, being provided with antenna on WiFi module 1, described antenna is PCB antenna, IPEX interface antenna or the stamp hole interface antenna that ESP8266WIFI chip is formed in encapsulation process. For ease of application, be also circumscribed with flash memory at WiFi module 1, when WiFi module 1 ESP8266WIFI chip carry and as equipment in unique treater time directly start from external flash memory.
Being solidified with operation sequence of control in described WiFi module 1, this program adopts LabVIEW (LaboratoryVirtualInstrumentEngineeringWorkbench) language programming and becomes. In other embodiments, the program in WiFi module by user according to oneself need carry out programming, be not limited to the present embodiment.
During the above-mentioned remote serial port control module of practical application, upper computer and lower computer are installed a remote serial port control module respectively, for convenience of distinguish, below taking be arranged on upper computer as the first remote serial port control module, taking be arranged on lower computer as the 2nd remote serial port control module. Concrete principle of work is: the control command that supervisory controller sends is transferred to corresponding WiFi module after turning RS485 module converts by the TTL serial ports of the first remote serial port control module, radiates to surrounding environment after corresponding WiFi module processes in the way of wireless signal again; The 2nd remote serial port control module on lower computer is by the wireless signal in its WiFi module reception environment and turns RS485 module transfer to lower computer controller by corresponding TTL serial ports after identifying conversion, reaches Long-distance Control and the object of long-range instruction.
In the present embodiment, described upper computer, lower computer are all the industrial equipments of band PLC control device. In other embodiments, described upper computer is the intelligent terminal such as computer, mobile phone, described lower computer is the home appliance of tape-controller, can be connected by the I/O interface that WiFi module carries, be not limited to the present embodiment between remote serial port control module and home appliance.
A kind of remote serial port control module based on WiFi that the present embodiment provides, adopt ESP8266WiFi chip as the core component of WiFi module 1, there is following useful effect: plurality of wireless networks encryption mode 1) can be supported, comprise: WEP64/WEP128/TKIP/CCMP (AES) WEP/WPA-PSK/WPA2-PSK etc., effectively fully ensure the safe transmission of user data. 2) can network fast, mainly through specifying the mode of channel number to realize quick networking. In common Wireless Networking process, first current all channels can once be scanned automatically, search for (or Adhoc) network that the object AP preparing to connect creates. This module provides the parameter arranging work channel, when known object network place channel, it is possible to the directly work channel of designated module, thus reaches the object accelerating networking speed. 3) function binding object network B SSID address in networking process it is supported in. According to 802.11 agreement regulations, different wireless networks can have identical network name (being also exactly SSID/ESSID), but must a corresponding unique BSSID address. The method of the wireless network that illegal invasion person can have identical SSID/ESSID by setting up so that the STA in network is connected on illegal AP, thus causes divulging a secret of network. The mode bound by BSSID address, it is possible to prevent STA to be linked into illegal network, thus improve the security of wireless network. 4) the radio roaming function based on 802.11 agreements is supported. Radio roaming refers to the coverage in order to expand a wireless network, the wireless network that one has identical SSID/ESSID is jointly created by multiple AP, each AP is used for covering different regions, the STA being linked into network can access by the AP the strongest according to the selection signal of present position, and the movement switching between different AP automatically along with STA.
Above embodiment is only that better embodiment of the present utility model illustrates, can not be limited by protection domain of the present utility model with this. It is appreciated that under the enlightenment of the utility model essence, the art those of ordinary skill also can carry out many improvement and modification, it should be noted that these improve and modify and all drop within claims of the present utility model.
Claims (7)
1. based on the remote serial port control module of WiFi, it is characterized in that, comprise: WiFi module, Voltage stabilizing module and TTL serial ports turn RS485 module, described WiFi module is become by ESP8266WIFI Chip Packaging, described Voltage stabilizing module is that WiFi module and TTL serial ports turn RS485 module for power supply, the TXD mouth that described TTL serial ports turns RS485 module connects the RXD mouth of WiFi module, and the RXD mouth that described TTL serial ports turns RS485 module connects the TXD mouth of WiFi module.
2. the remote serial port control module based on WiFi according to claim 1, it is characterised in that, the antenna of described WiFi module is PCB antenna, IPEX interface antenna or stamp hole interface antenna.
3. the remote serial port control module based on WiFi according to claim 1, it is characterised in that, described WiFi module is circumscribed with flash memory.
4. the remote serial port control module based on WiFi according to claim 1, it is characterized in that, during application, installing the first remote serial port control module and the 2nd remote serial port control module on upper computer and lower computer respectively, between upper computer and lower computer, signal transmission link is: the TTL serial ports of WiFi module the 2nd remote serial port control module that the TTL serial ports of upper computer first remote serial port control module turns WiFi module the 2nd remote serial port control module of RS485 module first remote serial port control module turns RS485 module lower computer.
5. the remote serial port control module based on WiFi according to claim 4, it is characterised in that, described upper computer, lower computer are all the industrial equipments of band PLC control device.
6. the remote serial port control module based on WiFi according to claim 4, it is characterised in that, described upper computer is intelligent terminal, and described lower computer is the home appliance of tape-controller.
7. the remote serial port control module based on WiFi according to claim 6, it is characterised in that, described intelligent terminal comprises: notebook computer, smart mobile phone, panel computer or desktop computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620042332.0U CN205281223U (en) | 2016-01-14 | 2016-01-14 | Long -range serial ports control module based on wiFi |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620042332.0U CN205281223U (en) | 2016-01-14 | 2016-01-14 | Long -range serial ports control module based on wiFi |
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| CN205281223U true CN205281223U (en) | 2016-06-01 |
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| CN201620042332.0U Active CN205281223U (en) | 2016-01-14 | 2016-01-14 | Long -range serial ports control module based on wiFi |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573240A (en) * | 2016-01-14 | 2016-05-11 | 佛山职业技术学院 | Remote serial port control module based on WiFi |
| CN106971525A (en) * | 2017-03-23 | 2017-07-21 | 青岛海信日立空调系统有限公司 | A kind of Bluetooth signal conversion equipment and Bluetooth signal conversion method |
-
2016
- 2016-01-14 CN CN201620042332.0U patent/CN205281223U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573240A (en) * | 2016-01-14 | 2016-05-11 | 佛山职业技术学院 | Remote serial port control module based on WiFi |
| CN106971525A (en) * | 2017-03-23 | 2017-07-21 | 青岛海信日立空调系统有限公司 | A kind of Bluetooth signal conversion equipment and Bluetooth signal conversion method |
| CN106971525B (en) * | 2017-03-23 | 2020-03-13 | 青岛海信日立空调系统有限公司 | Bluetooth signal conversion device and Bluetooth signal conversion method |
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