CN211429321U - Network clock system capable of being managed in centralized mode - Google Patents

Abstract

The utility model discloses a network clock system capable of centralized management, which comprises a server terminal and a plurality of clock terminals, wherein the clock terminals are connected with the server terminal; the clock terminal comprises an MCU, a network module, a clock module, a temperature and humidity sensor, a power supply module, a display module, a playing module, an external storage module and a loudspeaker, wherein the MCU is connected with the server terminal through the network module, the clock module, the temperature and humidity sensor, the display module, the playing module, the external storage module and the power supply module are correspondingly connected with the MCU, and the loudspeaker is connected with the playing module. The utility model discloses can centralized management control's network intelligent clock system, numerous problems and the pain point that appear in the campus have been solved.

Description

Network clock system capable of being managed in centralized mode

The technical field is as follows:

the utility model relates to a but centralized management's network clock system.

Background art:

with the continuous development of information technology, various major schools, middle schools and primary schools respond to the national call, the information construction of modern campuses is actively promoted, and the implementation of intelligent education projects advocated by the countries is promoted. At present, various software and hardware facilities are rapidly deployed in various schools, but links such as time display, ring-playing and voice broadcasting in teaching places such as various classrooms, laboratories, training rooms and libraries still stay in the traditional single broadcast ring-playing system of quartz clock and whole school, and the problems of time inconsistency, multiple clock faults, untimely maintenance and the like occur.

The invention content is as follows:

the present invention provides a network clock system capable of centralized management for solving the problems of the prior art.

The utility model discloses the technical scheme who adopts has: a network clock system capable of being managed in a centralized mode comprises server terminals and clock terminals, wherein the clock terminals are connected with the server terminals; the clock terminal comprises an MCU, a network module, a clock module, a temperature and humidity sensor, a power supply module, a display module, a playing module, an external storage module and a loudspeaker, wherein the MCU is connected with the server terminal through the network module, the clock module, the temperature and humidity sensor, the display module, the playing module, the external storage module and the power supply module are correspondingly connected with the MCU, and the loudspeaker is connected with the playing module.

Further, the MCU adopts a singlechip of which the model is STM32F407ZGT 6.

Further, the network module comprises a wifi module and a wired module.

Further, the wifi module adopts an ESP8266 chip.

Furthermore, the wired module adopts a W5500 full-hardware TCP/IP protocol stack network chip.

Further, the playing module is an MP3 player.

Furthermore, a control switch is connected to the power module.

The utility model discloses following beneficial effect has:

1) scene position information management: CRUD, which is mainly used for carrying out operations such as increasing, deleting, modifying, checking and the like on the building and room information;

2) terminal initial information management: the CR is mainly used for performing operations such as adding and checking on terminal information, wherein the terminal information comprises a name/number, position information, registration time, network parameters and a current state;

3) terminal equipment management and control: setting terminal information in batches, wherein the terminal information comprises time, alarm, audio files, volume and timing on-off;

4) and managing log records and queries.

The utility model discloses can centralized management control's network intelligent clock system, numerous problems and pain point that appear in the above-mentioned campus have been solved.

Description of the drawings:

fig. 1 is a schematic block diagram of the present invention.

Fig. 2 is the network adaptation schematic diagram of the wifi module of the present invention.

Fig. 3 is a peripheral circuit diagram of the MP3 player of the present invention.

Fig. 4 is a power supply circuit diagram of the clock terminal of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, the utility model relates to a but centralized management's network clock system, including server terminal and clock terminal, a plurality of clock terminal links to each other with server terminal.

The clock terminal comprises an MCU, a network module, a clock module, a temperature and humidity sensor, a power supply module, a display module, a playing module, an external storage module and a loudspeaker, wherein the MCU is connected with the server terminal through the network module, the clock module, the temperature and humidity sensor, the display module, the playing module, the external storage module and the power supply module are correspondingly connected with the MCU, and the loudspeaker is connected with the playing module.

The utility model discloses a two parts at server terminal and clock terminal, clock terminal pass through wireless WIFI (2.4G) or the access campus LAN of ethernet port to carry out interconnection communication with server terminal, carry out unified management and control to all clock terminals in the network by backend server terminal, thereby realize all the time that clock terminal is unified in the universe, functions such as individualized alarm clock and audio playback.

And the user controls all the clock terminals in the connection area network through the server terminal and manages and controls the clock terminals in the internetwork. The clock terminal analyzes the data set by the receiving server terminal at specific local time every day, and performs software time compensation calculation by a software algorithm, so that the time correction operation is automatically completed, and the travel time accuracy of the system is ensured.

The utility model discloses a clock system not only can realize unified accurate synchronous clock system to the teaching place of difference (classroom, laboratory, real standard room etc.), can also set up the time of ringtone, the effect of ringtone in a flexible way according to the difference of place and teaching activity, perhaps carries out real-time, accurate individualized speech broadcast according to the needs in place and activity, simultaneously the utility model discloses still possess the temperature in real time demonstration current place, functions such as humidity facility, improved the practicality of product. The application of the product is believed to effectively enhance the information service function of the teaching environment, promote the accurate implementation of teaching activities and effectively improve the efficiency of teaching management work.

The utility model provides a clock terminal can show current time information, including time information such as year, month, day, time, week, outside, still show information such as the temperature and humidity in self-defined week information and the current place of equipment. Meanwhile, the clock terminal also supports automatic power-off starting and automatic synchronization, and non-uniform terminal time is avoided.

The clock terminal can select different digital display modes according to the requirements of users and application scenes, can select a nixie tube design and can also adopt LED dot matrix display.

The server terminal of the background can carry out unified time service on all the clock terminals in the network, and the uniformity and the accuracy of all the clock terminals are guaranteed. The server terminal can send the audio file to the appointed server terminal in real time through the wireless network and store the audio file in the local terminal, the system can also quickly select the clock terminal to perform timing or real-time broadcasting, and the broadcasting content can be the appointed audio file. The server terminal can monitor the states of all the clock terminals in real time. If the clock terminal is abnormal in the network, alarm information can be prompted, so that the supervision of the device state in the universe is facilitated, and meanwhile, the state of the current clock terminal can be checked according to the position information such as buildings, floors, room numbers and the like. The server terminal has a complete management log module, can record the setting and management operation of the server terminal and each clock terminal in detail, and is convenient for the safety supervision of management departments.

The utility model provides a MCU adopts the model to be STM32F407ZGT 6's singlechip. MCU can carry out the communication with backend server terminal through driving wired module and wifi module. The temperature and humidity sensor can be collected to drive an MP3 (playing module), an SD card (external storage module) and a nixie tube display circuit (display module). The STM32F407ZGT6 singlechip is internally provided with a clock.

The network module comprises a wifi module and a wired module. The wifi module adopts an ESP8266 chip, and the wired module adopts a W5500 full-hardware TCP/IP protocol stack network chip.

Fig. 2 is a network adaptation circuit diagram of a WiFi module, which employs an ESP8266 chip, and is capable of hosting software applications or offloading all WiFi network functions through another application processor.

The ESP8266 chip can be booted directly from the external flash memory when it is loaded with an application and used as the only application processor in the device. The built-in cache memory is beneficial for improving system performance and reducing memory requirements. In addition, when the wireless upper access undertakes the task of the WiFi adapter, the WiFi adapter can be added into any design based on a microcontroller, the connection is simple and easy to implement, and the WiFi adapter can be connected only through an SPI/SDIO interface or a central processing unit AHB bridge interface.

The powerful on-chip processing and storage capability of the ESP8266 enables the sensor and other application specific devices to be integrated through the GPIO port, thereby realizing minimum occupation of system resources in development and operation at the lowest earlier stage. ESP8266 is highly integrated on chip, including antenna switch balun, power management converter, so that only minimal external circuitry is required, and the entire solution, including the front end module, minimizes the PCB space occupied during design.

The system with ESP8266 exhibits the leading features: the fast switching of power-saving VoIP between sleep/awake modes, adaptive radio biasing in conjunction with low power operation, front-end signal processing functionality, troubleshooting, and radio system coexistence features are to eliminate cellular/bluetooth/DDR/LVDS/LCD interference.

The playing module is an MP3 player. Fig. 3 is a peripheral circuit diagram of an MP3 player, and the core chip of the circuit is WM 3.

WM8978 is a low power, high quality stereo codec. It is mainly applied to portable applications such as digital cameras, camcorders. It combines the pre-amplification of a stereo differential microphone with the driving of the speaker, the earpiece and the differential, stereo line outputs, reducing the need for external components for applications such as a separate microphone or earpiece amplifier. Advanced on-chip digital signal processing functions include a 5-way equalization function, an automatic level control function for the mixed signal between the ADC and the microphone or line input, a pure digital clipping function for recording or playback. In addition, a digital filtering function is provided on the circuit of the ADC, so that filtering can be better applied, such as wind noise reduction. WM8978 may be implemented as a master or as a slave. Based on a common reference clock frequency, such as 12MHz and 13MHz, an internal PLL can provide all the required audio clocks to the codec. WM8978 operates at an analog supply voltage of 2.5V to 3.3V, although its digital core may reduce the operating voltage to 1.62V in order to conserve power. If increased output power is required, the speaker and OUT3/4 line output can be run on a 5V power supply. The individual parts of the chip may also be power down controlled by software.

The power module is connected with a control switch. FIG. 4 is a power supply circuit diagram of a clock terminal, a 12V direct current power supply is adopted as a main power supply, a direct plug-in type 220-12V power supply can be selected, and 5V and 3.3V power supplies are required in the system, so that voltage reduction is designed by adopting voltage reduction chips LM2596-5 and ASM1117-3.3, and a voltage stabilizing circuit achieves stable 5V and 3.3V.

The utility model discloses set for sole bluetooth equipment name, service UUID, transmitting power, pairing password when the installation. The uniqueness of the equipment name is ensured, and the control is convenient. The user needs certain authority to use the server terminal, and the single chip microcomputer receives data received by the wifi module or the wired module and carries out software decryption, so that the safety of the system is guaranteed. According to the preference of the user, the user downloads the ring required to be set to the external storage device in advance, the formats of MP3, WMA and the like are supported, and the user can modify the alarm clocks and the ring in the system one by one in batches by using the background server client. When the time reaches the set time, the MCU can read the data of the selected ring in the external storage device through the SDIO and carry the data of the selected ring to the audio coding and decoding chip through the DMA, and then the data is output to the loudspeaker/the sound. Meanwhile, the system sets specific local time, carries out analysis by receiving wifi and wired data, carries out software time compensation calculation, automatically finishes timing operation (writes in a clock module), ensures the travel time accuracy of the system, displays the travel time accurately through a display part, and finds out that the nixie tube is the best display device through comparison because only the time needs to be displayed. The lower computer collects data of the temperature and humidity sensor, and sends the ambient temperature and the humidity to the background in real time through wifi or in a wired mode, and the ambient temperature and the humidity are checked in a unified mode.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims (2)

1. A centrally manageable network clock system, characterized by: the intelligent teaching terminal comprises a server terminal and a plurality of clock terminals, wherein the clock terminals are respectively arranged in classrooms, laboratories or training rooms in different teaching places, and each clock terminal is connected with the server terminal; the clock terminal comprises an MCU, a network module, a clock module, a temperature and humidity sensor, a power supply module, a display module, a playing module, an external storage module and a loudspeaker, wherein the MCU is connected with the server terminal through the network module;

the MCU adopts a singlechip of which the model is STM32F407ZGT 6;

the network module comprises a wifi module and a wired module;

the wifi module adopts an ESP8266 chip;

the wired module adopts a W5500 full-hardware TCP/IP protocol stack network chip;

the playing module is an MP3 player.

2. The centrally manageable network clock system of claim 1, wherein: and the power supply module is connected with a control switch.

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