CN110708670B - Attendance base station, attendance method and attendance system - Google Patents
Attendance base station, attendance method and attendance system Download PDFInfo
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- CN110708670B CN110708670B CN201910826069.2A CN201910826069A CN110708670B CN 110708670 B CN110708670 B CN 110708670B CN 201910826069 A CN201910826069 A CN 201910826069A CN 110708670 B CN110708670 B CN 110708670B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
- G07C1/10—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people together with the recording, indicating or registering of other data, e.g. of signs of identity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
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Abstract
The embodiment of the invention provides an attendance checking base station, an attendance checking method and an attendance checking system. The attendance base station comprises: the short-distance communication system comprises a short-distance communication protocol module, a WiFi module and a control module, wherein the transmission distance of the short-distance communication protocol module is smaller than that of the WiFi module; the short-distance communication protocol module is connected with one end of the control module and comprises a short-distance communication protocol chip and a short-distance communication protocol antenna; the WiFi module is connected with the other end of the control module and comprises a WiFi chip, a WiFi module internal antenna and a WiFi module external antenna, wherein the WiFi module internal antenna and the WiFi module external antenna are the same in working frequency band; and when the control module confirms that the working frequency of the short-distance communication protocol module is the same as that of the WiFi module, the WiFi chip is controlled to be switched to the external antenna of the WiFi module. The embodiment of the invention realizes the coexistence of the WiFi module and the short-distance communication protocol module, so that the attendance base station not only has the traditional wireless function, but also has the attendance and positioning functions, the deployment scheme of the attendance system is simplified, and the attendance cost is saved.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to an attendance base station, an attendance method and an attendance system.
Background
At present, in many occasions, attendance checking is required to be carried out for facilitating the arrival condition of inspectors, such as company employee attendance checking, student roll call and the like. With the development of scientific technology, the mode of attendance is also more and more diversified, if: paper attendance, fingerprint attendance, face recognition attendance, magnetic card attendance, etc. However, the above attendance checking methods all require active participation of the staff, and have many problems, such as: and during the peak attendance period, the attendance is required to be queued, forgotten and the like.
Because the coverage of Wireless Fidelity (WiFi) is wide at present, an intelligent attendance checking method based on WiFi is introduced, a WiFi base station is deployed in each attendance checking site in advance, attendance checking personnel carry an intelligent terminal with a WiFi module to enter the coverage of the WiFi base station and then connect WiFi, and then the WiFi base station can determine the connected intelligent terminal as a terminal with successful attendance checking. However, the WiFi-based attendance method has a large coverage but a low accuracy of positioning within a small range.
In consideration of the fact that short-distance communication protocols such as Bluetooth, ZigBee and the like and WiFi have the same working frequency band and can interfere with each other during working, in order to solve the problem that an attendance checking method based on WiFi is poor in positioning accuracy, in the prior art, a plurality of short-distance communication base stations such as Bluetooth base stations and ZigBee base stations can only be added to each attendance checking site, existing WiFi base stations cannot be utilized, and therefore the attendance checking system is complex in deployment and high in cost.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the invention provides an attendance base station, an attendance method and an attendance system.
In a first aspect, an embodiment of the present invention provides an attendance checking base station, including:
the short-distance communication system comprises a short-distance communication protocol module, a WiFi module and a control module, wherein the transmission distance of the short-distance communication protocol module is smaller than that of the WiFi module;
the short-distance communication protocol module is connected with one end of the control module and comprises a short-distance communication protocol chip and a short-distance communication protocol antenna;
the WiFi module is connected with the other end of the control module and comprises a WiFi chip, a WiFi module internal antenna and a WiFi module external antenna, wherein the WiFi module internal antenna and the WiFi module external antenna are the same in working frequency range;
and when the control module confirms that the working frequency bands of the short-distance communication protocol module and the WiFi module are the same, the WiFi chip is controlled to be switched from the built-in antenna of the WiFi module to the external antenna of the WiFi module.
Optionally, the short-range communication protocol module includes multiple short-range communication protocol chips, and is configured to support multiple terminals to check attendance at the same time;
the working frequency band of a first short-distance communication protocol chip in the plurality of short-distance communication protocol chips is the same as that of a second short-distance communication protocol chip in the plurality of short-distance communication protocol chips;
the first short-distance communication protocol chip is connected with the first short-distance communication protocol antenna and used for receiving short-distance communication protocol signals sent by the terminal;
the second short-distance communication protocol chip is connected with the second short-distance communication protocol antenna and used for broadcasting the short-distance communication protocol signals to the terminal.
As for the attendance base station, optionally, the WiFi module includes a plurality of WiFi chips;
the working frequency bands of a first WiFi chip in the WiFi chips are different from the working frequency bands of a second WiFi chip in the WiFi chips;
the first WiFi chip is connected with a first WiFi module built-in antenna or a first WiFi module external antenna and used for sending or receiving WiFi signals with the same working frequency band as the first WiFi chip;
the second WiFi chip is connected with a second WiFi module built-in antenna or a second WiFi module external antenna and used for sending or receiving WiFi signals with the same working frequency band as the second WiFi chip.
Optionally, each WiFi chip includes two rf links, each WiFi module internal antenna includes two WiFi module internal sub-antennas, and each WiFi module external antenna includes two WiFi module external sub-antennas;
and each radio frequency link is connected with the corresponding built-in sub-antenna of the WiFi module or the external sub-antenna of the WiFi module.
As above attendance base station, optionally, the short-range communication protocol antenna is an adjustable directional antenna.
As above-mentioned attendance basic station, optionally, the attendance basic station still includes:
and the waterproof interface device is arranged outside the attendance checking base station.
As above attendance checking base station, optionally, the short-range communication protocol module includes: bluetooth module, Zigbee module or RFID module.
In a second aspect, an embodiment of the present invention provides an attendance checking method, which is applied to the above mentioned attendance checking base station, and the method includes:
receiving a short-distance communication protocol signal broadcasted by a terminal according to a preset period;
receiving a signal format according to a preset signal processing threshold and a preset short-distance communication protocol, and determining first terminal information with successful attendance;
and sending the first terminal information to an attendance server so that the attendance server can determine an attendance result according to an attendance list corresponding to the attendance base station.
The method as described above, optionally, further includes:
and positioning the first terminal with successful attendance according to the position of the attendance base station.
The method as described above, optionally, further includes:
receiving a WiFi signal broadcasted by a terminal according to a preset period;
determining second terminal information with successful attendance checking according to a preset WiFi signal receiving format;
and sending the second terminal information to an attendance server so that the attendance server can determine an attendance result according to an attendance list corresponding to the attendance base station, the first terminal information and the second terminal information.
In a third aspect, an embodiment of the present invention provides an attendance system, including: at least one attendance base station, terminal and attendance server as described above;
the terminal is used for broadcasting the short-distance communication protocol signal according to the preset frequency;
the attendance server is used for receiving the first terminal information which is sent by the attendance base stations and succeeds in attendance, and determining attendance results according to the attendance lists corresponding to the attendance base stations.
According to the attendance base station provided by the embodiment of the invention, the WiFi module and the short-distance communication protocol module are arranged in the attendance base station, the built-in antenna and the external antenna which have the same frequency and can be freely switched are arranged on the WiFi module, when the working frequency of the short-distance communication protocol module is the same as that of the WiFi module, the WiFi module is controlled to be switched to the external antenna, the isolation between the short-distance communication protocol module antenna and the WiFi module antenna is further increased, the mutual interference is reduced, the isolation requirement is met, the coexistence of the WiFi module and the short-distance communication protocol module is realized, the attendance location can be further carried out based on the short-distance communication protocol module of the attendance base station, the access network operation is carried out based on the WiFi module, the attendance base station not only has the traditional wireless function, but also has the attendance and location functions, the deployment scheme of an attendance system is simplified, and the attendance cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an attendance checking base station according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an attendance checking base station according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an attendance checking base station according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an attendance checking base station according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an attendance checking base station according to an embodiment of the present invention;
fig. 6 is a schematic flow chart of an attendance checking method according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an attendance system provided in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With the development of scientific technology, most colleges and universities and office areas completely cover WiFi signals, users can conveniently surf the internet, the method for checking attendance based on WiFi cannot meet the high-precision requirement required by attendance, short-distance communication protocols such as Bluetooth and ZigBee have the same working frequency band with WiFi, the short-distance communication protocols such as Bluetooth and ZigBee interfere with each other during working at the same time, when the short-distance communication protocols such as Bluetooth and ZigBee are used for checking attendance, a plurality of Bluetooth base stations or Zigbee base stations need to be independently planned in the attendance area, the deployment workload of the attendance system is increased, and if the attendance method based on the short-distance communication protocols such as Bluetooth and ZigBee can be realized in the WiFi base stations, the deployment cost of the attendance system is greatly reduced. In order to achieve the purpose, the embodiment of the invention provides a new attendance base station, a WiFi module and a short-distance communication protocol module are arranged in the attendance base station, the two modules are respectively arranged at different ends of a control module to realize primary isolation, an internal antenna and an external antenna which have the same frequency and can be freely switched are arranged on the WiFi module, when the working frequency bands of the short-distance communication protocol module and the WiFi module are the same, the WiFi module is controlled to be switched to the external antenna, the isolation between the short-distance communication protocol module antenna and the WiFi module antenna is further increased, the mutual interference is reduced, the isolation requirement is met, the coexistence of the WiFi module and the short-distance communication protocol module is realized, the attendance location can be further carried out on the basis of the short-distance communication protocol module of the attendance base station, the network access operation is carried out on the basis of the WiFi module, so that the attendance base station not only has the traditional wireless function, but also has the attendance and location functions, the deployment scheme of the attendance system is simplified, and the attendance cost is saved.
The invention will now be illustrated with reference to specific examples. Fig. 1 is a schematic structural diagram of an attendance base station according to an embodiment of the present invention, and as shown in fig. 1, the attendance base station includes: the short-distance communication system comprises a short-distance communication protocol module 10, a WiFi module 30 and a control module 20, wherein the transmission distance of the short-distance communication protocol module 10 is smaller than that of the WiFi module 30, and the short-distance communication protocol module 10 may be a bluetooth module, a Zigbee module or a Radio Frequency Identification (RFID) module. Short-range communication protocol module 10 links to each other with control module 20's one end, short-range communication protocol module 10 includes short-range communication protocol chip 120 and short-range communication protocol antenna 110, control module 20 is connected with short-range communication protocol chip 120, short-range communication protocol chip 120 is connected with short-range communication protocol antenna 110, short-range communication protocol antenna 110 can be the built-in antenna of bluetooth base station, this antenna is adjustable directional antenna, angle of regulation can set up within 30, through deploying a plurality of attendance base stations, and adjust the direction of short-range communication protocol antenna 110 in every attendance base station, can realize that the signal covers comprehensively. By using the directional antenna, the coverage directivity of the attendance checking base station is improved, the isolation between close-range attendance checking base stations is facilitated, the mutual interference is reduced, and the difficulty of coverage deployment is reduced.
The WiFi module 30 is connected to the other end of the control module 20, the WiFi module 30 includes a WiFi chip 310, a WiFi module internal antenna 320 and a WiFi module external antenna 330, the WiFi chip 310 may be connected to one of the WiFi module internal antenna 320 and the WiFi module external antenna 330, and the working frequency bands of the WiFi module internal antenna 320 and the WiFi module external antenna 330 are the same.
The control module 20 includes a main control chip (not shown in the figure), and when the control module 20 determines that the working frequency bands of the short-distance communication protocol module 10 and the WiFi module 30 are the same, for example, both working frequency bands are 2.4G, the control module controls the WiFi chip 30 to be switched from the WiFi module internal antenna 320 to the WiFi module external antenna 330, so that the isolation between the short-distance communication protocol antenna and the WiFi module antenna is increased, the mutual interference is reduced, the isolation requirement is met, and the coexistence of the WiFi module and the short-distance communication protocol module is realized.
When attendance checking is needed, a plurality of attendance checking base stations are deployed at different angles in an attendance checking area according to the coverage range of each attendance checking base station, a certain distance is kept among the attendance checking base stations, and the coverage in a certain area is realized by adjusting the direction of a short-distance communication protocol module directional antenna in the attendance checking base station; all attendance base stations are connected to an attendance server through a wired port or a wireless network, the attendance server configures a unique identification number for each attendance base station, and the identification number, the position and the attendance area of each attendance base station and terminal information corresponding to an attendance list of a person to be checked in the area are stored in the attendance server. The attendance server also sets a preset signal processing threshold value and a preset short-distance communication protocol receiving signal format and sends the preset signal processing threshold value and the preset short-distance communication protocol receiving signal format to the attendance base station, and only if the received short-distance communication protocol signal is the same as the preset short-distance communication protocol receiving signal format and the received signal strength is within the preset signal processing threshold value, the attendance success can be determined.
After deployment is completed, a short-distance communication protocol module in the attendance checking base station is used for broadcasting a short-distance communication protocol signal, if the Bluetooth module in the attendance checking base station broadcasts the Bluetooth signal, once the terminal enters the coverage of a certain attendance checking base station, the short-distance communication protocol signal broadcasted by the terminal according to the preset period can be received and identified by the attendance checking base station, then the attendance checking base station filters terminal information with poor received signal strength according to the received signal strength and a preset signal processing threshold value, and comparing the formats of the preset short-distance communication protocol received signals, for example, the attendance base station and the terminal can preset a private protocol, and defining the format of the terminal broadcast short-distance communication protocol signal, and if the format of the received short-distance communication protocol signal is the same as the format of the preset short-distance communication protocol received signal, determining the terminal information as the first terminal information with successful attendance. And then the first terminal information is sent to an attendance server, the attendance server filters the first terminal information according to the terminal information of the attendance list corresponding to each attendance base station, a final attendance result is determined, and the terminal does not need to be accessed, so that attendance can be realized. In addition, the attendance server can also position the terminal with successful attendance according to the position of each attendance base station, for example, the position of the attendance base station is directly set as the position of the terminal, or the position is further accurate according to the received signal strength of the terminal, and the terminal can pass through the WiFi network of the attendance base station as long as the terminal is within the WiFi coverage range of the attendance, so that the internet surfing function is realized.
In addition, in order to improve the attendance success rate, the terminal can also check the attendance through WiFi, similar to short-distance communication protocol signal attendance, once the terminal enters the coverage range of a certain attendance base station, the WiFi signal broadcasted by the terminal according to the preset period can be received and identified by the attendance base station, then the attendance base station filters the terminal information with poor received signal strength according to the strength of the received signal and the preset signal processing threshold value, and determines the filtered terminal information as the second terminal information with successful attendance. And then, the second terminal information is sent to an attendance server, and the attendance server determines a final attendance result by combining the first terminal information and the second terminal information reported by the attendance base station.
The attendance base station provided by the embodiment of the invention is provided with the WiFi module and the short-distance communication protocol module, the WiFi module is provided with the internal antenna and the external antenna which have the same frequency and can be freely switched, when the working frequency of the short-distance communication protocol module is the same as that of the WiFi module, the WiFi module is controlled to be switched to the external antenna, the isolation between the short-distance communication protocol module antenna and the WiFi module antenna is increased, the mutual interference is reduced, the isolation requirement is met, the coexistence of the WiFi module and the short-distance communication protocol module is realized, the attendance positioning can be further carried out based on the short-distance communication protocol module of the attendance base station, and the access network operation is carried out based on the WiFi module, so that the attendance base station not only has the traditional wireless function, but also has the attendance and positioning functions, the deployment scheme of the attendance system is simplified, and the attendance cost is saved.
On the basis of the above embodiment, further, as shown in fig. 2, the short-range communication protocol module 10 includes a plurality of short-range communication protocol chips, which are used for supporting multi-terminal simultaneous attendance;
the first short-range communication protocol chip 121 in the plurality of short-range communication protocol chips is the same as the second short-range communication protocol chip 122 in the plurality of short-range communication protocol chips in working frequency band;
the first short-range communication protocol chip 121 is connected to the first short-range communication protocol antenna 111, and is configured to receive a short-range communication protocol signal sent by the terminal;
the second short-range communication protocol chip 122 is connected to the second short-range communication protocol antenna 112 for broadcasting short-range communication protocol signals to the terminals.
Specifically, considering that the number of terminals received by the attendance base station is large, one short-range communication protocol chip cannot meet the multi-terminal access requirement, therefore, a plurality of short-range communication protocol chips may be provided, including a first short-range communication protocol chip 121 and a second short-range communication protocol chip 122, the first short-range communication protocol chip 121 is only used for receiving short-range communication protocol signals sent by the terminals, the second short-range communication protocol chip 122 is only used for broadcasting short-range communication protocol signals to the terminals, so as to meet the multi-terminal access requirement of the bluetooth base station, wherein, the terminal support amount of the attendance base station may be, depending on the hardware configuration and software algorithm used, the first short-range communication protocol chip and the second short-range communication protocol chip may be short-range communication protocol chips with the same working frequency band but different working frequencies, the first and second chips are only used for distinguishing different short-distance communication protocol chips, and do not directly indicate the number of the short-distance communication protocol chips.
On the basis of the above embodiment, further, as shown in fig. 3, the WiFi module 30 includes a plurality of WiFi chips;
the working frequency bands of the first WiFi chip 311 in the WiFi chips are different from the working frequency bands of the second WiFi chip 312 in the WiFi chips;
the first WiFi chip 311 is connected to the first WiFi module internal antenna 321 or the first WiFi module external antenna 331, and is configured to send or receive a WiFi signal having the same working frequency band as the first WiFi chip;
the second WiFi chip 312 is connected to the second WiFi module internal antenna 322 or the second WiFi module external antenna 332, and is configured to send or receive a WiFi signal having the same working frequency band as the second WiFi chip.
Specifically, considering that the wide WiFi frequency channel of present application has 2G WiFi frequency channel and 5G WiFi frequency channel, in order to satisfy the terminal function of networking of different frequency channels, can set up a plurality of WiFi chips: the first WiFi chip 311 is connected to the first WiFi module internal antenna 321 or the first WiFi module external antenna 331, and is configured to send or receive a WiFi signal in the same working frequency band as the first WiFi chip, for example, the first WiFi chip 311 is configured to send or receive a WiFi signal in a 2G frequency band; the second WiFi chip 312 is connected to the second WiFi module internal antenna 322 or the second WiFi module external antenna 332, and is configured to send or receive a WiFi signal having the same working frequency band as the second WiFi chip, for example, the second WiFi chip is configured to send or receive a WiFi signal in a 5G frequency band. Each chip is respectively connected with an internal antenna or an external antenna with the same frequency band, so that switching can be performed when the external antenna needs to be switched. It should be noted that the first and second chips are only used for distinguishing different WiFi chips, and do not directly indicate the number of WiFi chips.
On the basis of the above embodiments, further, each WiFi chip includes two radio frequency links, each WiFi module internal antenna includes two WiFi module internal sub-antennas, and each WiFi module external antenna includes two WiFi module external sub-antennas;
and each radio frequency link is connected with the corresponding built-in sub-antenna of the WiFi module or the external sub-antenna of the WiFi module.
As shown in fig. 4, the first chip 311 includes a first rf link 3111 and a second rf link 3112, the first WiFi module internal chip 321 includes a first WiFi module internal sub-antenna 3211 and a second WiFi module internal sub-antenna 3212, and the first WiFi module external chip 331 includes a first WiFi module external sub-antenna 3311 and a second WiFi module external sub-antenna 3312. The first rf link 3111 is connected to the first WiFi module internal sub-antenna 3211 or the first WiFi module external sub-antenna 3311, and is configured to transmit a WiFi signal in the same working frequency band as the first WiFi chip. The second rf link 3112 is connected to the second WiFi module internal sub-antenna 3212 or the second WiFi module external sub-antenna 3312, and is configured to receive a WiFi signal having the same working frequency band as the first WiFi chip. The number of network access terminals can be increased through two radio frequency links. In practical application, the two radio frequency links of the same WiFi chip may also be set to have the same working frequency band but different working frequencies, and at this time, the two radio frequency links and the antennas thereof are used for both receiving signals and transmitting signals.
The second chip 312 includes a third rf link 3121 and a fourth rf link 3122, the second WiFi module built-in chip 322 includes a third WiFi module built-in sub-antenna 3221 and a fourth WiFi module built-in sub-antenna 3222, and the second WiFi module external chip 332 includes a third WiFi module external sub-antenna 3321 and a fourth WiFi module external sub-antenna 3322. The third rf link 3121 is connected to the third WiFi module internal sub-antenna 3221 or the third WiFi module external sub-antenna 3321, and is configured to send a WiFi signal having the same working frequency band as the second WiFi chip. The fourth rf link 3122 is connected to the fourth WiFi module internal sub-antenna 3222 or the fourth WiFi module external sub-antenna 3322, and is configured to receive a WiFi signal having the same working frequency band as the second WiFi chip. The number of network access terminals can be increased through two radio frequency links. In practical application, the two radio frequency links of the same WiFi chip may also be set to have the same working frequency band but different working frequencies, and at this time, the two radio frequency links and the antennas thereof are used for both receiving signals and transmitting signals.
For example, when the short-distance communication protocol module is a bluetooth module, as shown in fig. 5, the short-distance communication protocol module is a schematic structural diagram of the attendance checking base station, wherein the CPU chip QCA9563 is in connection communication with the MCU chip STM32 of the micro control unit through a USB interface, and the MCU chip is in connection communication with two bluetooth chips through the UART; attendance base station configuration and attendance base station state query can be carried out through a CPU chip Console port; the attendance checking base station can also be connected with a network through an RJ45 interface, and the interface is a main communication interface between the equipment and the outside; the CPU chip and the 5G WiFi chip QCA9886 carry out information delivery through a PCIE port of a serial computer expansion bus to complete 5G WiFi configuration, data receiving and transmitting and the like; the QCA9563 chip is provided with a 2G WiFi module, 2 paths of radio frequency can be transmitted and received at the same time, the transmitted radio frequency is processed by an amplifier PA, and then is controlled by a radio frequency Switch to transmit signals, the received radio frequency is controlled by the Switch RF Switch, and is processed by a low noise amplifier LNA (low noise amplifier), and then the received radio frequency returns to the WiFi chip. The embodiment of the invention adopts a main CPU chip, a 5G WiFi chip, an AR8033 interface chip and a Bluetooth chip to be combined, and combines a 128GB double-rate synchronous dynamic random access memory DDR2, a 128MB Nand Flash memory and a 2MB SPI FLASH. The wireless part main chips (QCA9563 and QCA9886) support the 802.11n protocol of 2.4G and the 802.11ac protocol of 5G respectively, and the 5G WiFi chip is connected with the CPU through PCIE and supports the double-frequency double-current simultaneous working mode. When bluetooth and 2G wiFi were in same frequency channel, the during operation can mutual interference simultaneously, switches 2G wiFi chip to external antenna, increases the isolation between the antenna, greatly reduced mutual interference, satisfy the in-service use demand.
In addition, in order to meet the waterproof requirements of IP68, a waterproof interface device can be installed outside the attendance base station, for example, a waterproof rubber ring is installed between the upper cover and the lower cover of the attendance base station, a waterproof vent valve is installed on the back surface of the lower cover of the attendance base station, a waterproof plug is installed on the network and the debugging port of the attendance base station, and the like.
Furthermore, the attendance base station provided by the embodiment of the invention can also perform positioning based on the position of the attendance base station, set the position of the terminal information with successful attendance as the position corresponding to the attendance base station, or further accurately set the position information according to the received signal strength of each terminal.
Based on the same inventive concept, an embodiment of the present invention further provides an attendance method, where an execution subject is the attendance base station described in the above embodiment, as shown in fig. 6, the method includes:
step S610, receiving a short-distance communication protocol signal broadcasted by the terminal according to a preset period;
step S620, receiving a signal format according to a preset signal processing threshold and a preset short-distance communication protocol, and determining first terminal information with successful attendance checking;
and S630, sending the first terminal information to an attendance server so that the attendance server can determine an attendance result according to an attendance list corresponding to the attendance base station.
On the basis of the above embodiment, further, the method further includes:
and positioning the first terminal with successful attendance according to the position of the attendance base station.
On the basis of the above embodiment, further, the method further includes:
receiving a WiFi signal broadcasted by a terminal according to a preset period;
determining second terminal information with successful attendance checking according to a preset WiFi signal receiving format;
and sending the second terminal information to an attendance server so that the attendance server can determine an attendance result according to an attendance list corresponding to the attendance base station, the first terminal information and the second terminal information.
Based on the same inventive concept, an attendance system is further provided in the embodiments of the present invention, as shown in fig. 7, including at least one attendance base station 710 (including attendance base station 1, attendance base station 2, attendance base station 3, and attendance base station 4 as shown in the figure), terminal 730 (terminal 1 to terminal 8 as shown in the figure), and attendance server 720:
the terminal 730 is configured to broadcast a short-range communication protocol signal according to a preset frequency;
the attendance server 720 is configured to receive the first terminal information that is successfully attended and sent by the attendance base station 710, and determine an attendance result according to an attendance list corresponding to each attendance base station.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
The above-described embodiments of the apparatuses and the like are merely illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention, and are not limited thereto; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An attendance base station, comprising:
the short-distance communication system comprises a short-distance communication protocol module, a WiFi module and a control module, wherein the transmission distance of the short-distance communication protocol module is smaller than that of the WiFi module;
the short-distance communication protocol module is connected with one end of the control module and comprises a short-distance communication protocol chip and a short-distance communication protocol antenna;
the WiFi module is connected with the other end of the control module and comprises a WiFi chip, a WiFi module internal antenna and a WiFi module external antenna, wherein the WiFi module internal antenna and the WiFi module external antenna are the same in working frequency range;
when the control module confirms that the working frequency bands of the short-distance communication protocol module and the WiFi module are the same, the WiFi chip is controlled to be switched from the WiFi module internal antenna to the WiFi module external antenna;
the short-distance communication protocol module comprises a plurality of short-distance communication protocol chips and is used for supporting multi-terminal simultaneous attendance checking;
the working frequency band of a first short-distance communication protocol chip in the plurality of short-distance communication protocol chips is the same as that of a second short-distance communication protocol chip in the plurality of short-distance communication protocol chips;
the first short-distance communication protocol chip is connected with the first short-distance communication protocol antenna and used for receiving short-distance communication protocol signals sent by the terminal;
the second short-distance communication protocol chip is connected with the second short-distance communication protocol antenna and used for broadcasting the short-distance communication protocol signals to the terminal.
2. The attendance base station of claim 1, wherein the WiFi module comprises a plurality of WiFi chips;
the working frequency bands of a first WiFi chip in the WiFi chips are different from the working frequency bands of a second WiFi chip in the WiFi chips;
the first WiFi chip is connected with a first WiFi module built-in antenna or a first WiFi module external antenna and used for sending or receiving WiFi signals with the same working frequency band as the first WiFi chip;
the second WiFi chip is connected with a second WiFi module built-in antenna or a second WiFi module external antenna and used for sending or receiving WiFi signals with the same working frequency band as the second WiFi chip.
3. The attendance base station of claim 2, wherein each of the WiFi chips comprises two radio frequency links, each of the WiFi module internal antennas comprises two WiFi module internal sub-antennas, and each of the WiFi module external antennas comprises two WiFi module external sub-antennas;
and each radio frequency link is connected with the corresponding built-in sub-antenna of the WiFi module or the external sub-antenna of the WiFi module.
4. The attendance base station of claim 1, wherein the short-range communication protocol antenna is an adjustable directional antenna.
5. The attendance base station of any of claims 1-4, wherein the short-range communication protocol module comprises: bluetooth module, Zigbee module or RFID module.
6. An attendance checking method applied to the attendance checking base station according to any one of claims 1 to 5, the method comprising:
receiving a short-distance communication protocol signal broadcasted by a terminal according to a preset period;
determining first terminal information with successful attendance checking according to a preset signal processing intensity threshold value and a preset short-distance communication protocol receiving signal format;
and sending the first terminal information to an attendance server so that the attendance server can determine an attendance result according to an attendance list corresponding to the attendance base station.
7. The method of claim 6, further comprising:
and positioning the first terminal with successful attendance according to the position of the attendance base station.
8. The method of claim 6, further comprising:
receiving a WiFi signal broadcasted by a terminal according to a preset period;
determining second terminal information with successful attendance checking according to a preset WiFi signal receiving format;
and sending the second terminal information to an attendance server so that the attendance server can determine an attendance result according to an attendance list corresponding to the attendance base station, the first terminal information and the second terminal information.
9. An attendance system, comprising: at least one attendance base station, terminal and attendance server as claimed in any of claims 1 to 5;
the terminal is used for broadcasting the short-distance communication protocol signal according to the preset frequency;
the attendance server is used for receiving the first terminal information which is sent by the attendance base stations and succeeds in attendance, and determining attendance results according to the attendance lists corresponding to the attendance base stations.
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| US20070041194A1 (en) * | 2005-08-17 | 2007-02-22 | Shih-Yung Chiu | Searchlight improvement structure |
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| US9721413B2 (en) * | 2015-10-13 | 2017-08-01 | Unikey Technologies Inc. | Wireless access control system operating in automatic calibration mode and including door position based lock switching and related methods |
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