CN209784774U

CN209784774U - intelligent trunk controller

Info

Publication number: CN209784774U
Application number: CN201920487299.6U
Authority: CN
Inventors: 程诚; 王宇; 陈智文
Original assignee: Shanghai Guao Electronic Technology Co Ltd
Current assignee: Shanghai Guao Electronic Technology Co Ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2019-12-13
Anticipated expiration: 2029-04-11

Abstract

the application provides an intelligence boot controller includes: the system comprises a ZIGBEE wireless module and a wireless wake-up module, wherein the ZIGBEE wireless module comprises a Micro Control Unit (MCU), and the MCU is electrically connected with the wireless wake-up module; the wireless wake-up module is connected with a low-frequency antenna and used for receiving a low-frequency signal and sending a wake-up signal to the MCU according to the low-frequency signal, so that the MCU is switched from a sleep state to a working state; and the MCU adopts a ZIGBEE protocol to establish a wireless networking so as to realize the wireless transmission of data. The application provides an intelligence boot controller need not to open the boot case lid, can realize the inquiry and the tracking to the unpacking number of times, time, boot state, the abnormal conditions of boot, ensures the warehouse entry and exit safety of fund.

Description

intelligent trunk controller

Technical Field

The utility model relates to a financial security field especially relates to an intelligence boot controller.

background

the tail box is a tool for transferring and storing important properties such as funds, bills and the like in the financial field such as banks and the like. At present, the number of bank outlets is large, the number of tail boxes is large, management is difficult, operation is complex, and mistakes are easy to make. The trunk has safety risks of handover, loss or theft, illegal opening and the like. For example, after the trunk is illegally opened, the bank cannot timely and accurately know the time and the number of times of the illegal opening, cannot timely respond, and cannot timely give an alarm or take corresponding processing measures.

although the existing trunk has the handover recording function, the recorded data are stored in the internal storage of the trunk, the operation records and the alarm information of the trunk are acquired and read through a USB data line after the trunk is opened, and the operation is complicated and the handover time is long.

SUMMERY OF THE UTILITY MODEL

an object of the utility model is to provide an intelligence boot controller can go out boot information transmission through wireless connection under the condition of not unpacking to solve the problem that proposes in the above-mentioned technical background.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

An intelligent trunk controller, comprising: the system comprises a ZIGBEE wireless module and a wireless wake-up module, wherein the ZIGBEE wireless module comprises a Micro Control Unit (MCU), and the MCU is electrically connected with the wireless wake-up module; wherein,

the wireless wake-up module is connected with a low-frequency antenna and used for receiving a low-frequency signal and sending a wake-up signal to the MCU according to the low-frequency signal so as to switch the MCU from a sleep state to a working state;

And the MCU adopts a ZIGBEE protocol to establish a wireless networking so as to realize the wireless transmission of data.

Preferably, when the wireless wake-up module does not receive the low-frequency signal within a preset time period, the MCU is in a sleep state, for example, the preset time period is greater than or equal to 10 seconds.

preferably, the MCU is a ZIGBEE chip, and the working frequency is 2.4 GHz.

more preferably, the MCU is a CC2530 chip.

preferably, an RF transceiver is integrated inside the MCU and includes at least one RF transceiver port, and the RF transceiver port is connected to a high frequency antenna.

More preferably, the RF transceiver comprises an RF transceiver port a and an RF transceiver port B;

the RF transceiving port A is connected with one end of a third capacitor through a first capacitor and a second capacitor which are connected in sequence;

the RF transceiving port B is connected with one end of the third capacitor through a fourth capacitor and a first inductor which are sequentially connected;

The other end of the third capacitor is connected with one end of the high-frequency antenna, and the other end of the high-frequency antenna is grounded;

And the first capacitor and the second capacitor are grounded through a second inductor, and the fourth capacitor and the first inductor are grounded through a fifth capacitor.

preferably, the micro control unit MCU is further connected with a 32MHz crystal oscillator.

More preferably, the MCU includes a crystal oscillator port a and a crystal oscillator port B, the crystal oscillator port a and the crystal oscillator port B are connected to two ends of a crystal oscillator, and the two ends of the crystal oscillator are grounded through a capacitor.

preferably, the low-frequency signal received by the wireless wake-up module is a wireless low-frequency signal with an operating frequency band at 125 KHz.

Preferably, the low frequency antenna is an inductor.

More preferably, the wireless wake-up module adopts an AS3933 chip.

further, the wireless WAKE-up module includes a WAKE port, an SDO port, an SDI port, an SCL port, and an SC port, where the WAKE port is connected to an IO port of the MCU, and the SDO port, the SDI port, the SC port, and the SCL port are connected to an SPI port of the MCU.

preferably, the wireless wake-up module includes an LF transceiver port a and an LF transceiver port B;

The LF transceiving port A is grounded;

The LF transceiving port B is grounded through the low-frequency antenna;

the LF transceiving port B is also grounded through a capacitor and a resistor which are connected in parallel.

Preferably, the ZIGBEE wireless module and the wake-on-wireless module are both low power modules.

Preferably, the intelligent trunk controller further comprises: the lithium battery is connected with the low-frequency antenna, the wireless awakening module and the micro control unit MCU respectively, and is provided with a charging interface which is connected with an external power socket through a charging and discharging protection circuit.

more preferably, the charge and discharge protection circuit includes a battery protection chip, and the battery protection chip includes a first pin, a second pin, a third pin, a fourth pin, a fifth pin, and a sixth pin; wherein,

the first pin is connected with a grid electrode of a first field effect transistor, and a source electrode of the first field effect transistor is connected with a negative electrode of the lithium battery;

The second pin is grounded through a first resistor of the battery protection chip;

The third pin is connected with a grid electrode of a second field effect tube, a source electrode of the second field effect tube is grounded, and a drain electrode of the second field effect tube is connected with a drain electrode of the first field effect tube;

the five pins are connected with one end of a second resistor of the battery protection chip, and the other end of the second resistor of the battery protection chip is connected with the anode of the lithium battery;

The other end of the second resistor of the battery protection chip is also connected with the cathode of a diode, and the anode of the diode is connected with a power pin of the external power socket;

the sixth pin is connected with the negative electrode of the lithium battery, and a capacitor is further connected between the sixth pin and the fifth pin.

Further, the battery protection chip is a DW01AZ chip.

further, the first field effect transistor and the second field effect transistor are both N-channel enhancement type MOS field effect transistors.

Preferably, the MCU communicates with one or more readers through a ZIGBEE network, and sends the recorded trunk information to the readers.

More preferably, the reader is a handheld or fixed reader, and the micro processing unit MCU and a low-frequency trigger for generating a low-frequency signal are embedded in the reader.

more preferably, the trunk information includes, but is not limited to, one or more of the number of times the trunk is opened, the time of opening the trunk, the status of the trunk, and an abnormal situation.

Compared with the prior art, the technical scheme of the utility model following beneficial effect has:

The application provides an intelligence boot controller need not to open the boot case lid, can realize the inquiry and the tracking to the unpacking number of times, time, boot state, the abnormal conditions of boot, ensures the warehouse entry safety of coming in and going out of fund.

Drawings

the accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:

Fig. 1 is a functional block diagram of an intelligent trunk controller according to a preferred embodiment of the present invention;

Fig. 2 is a schematic circuit diagram of a micro control unit MCU according to a preferred embodiment of the present invention;

Fig. 3 is a schematic circuit diagram of a wireless wake-up module according to a preferred embodiment of the present invention;

fig. 4 is a schematic circuit diagram of a charge/discharge protection circuit according to a preferred embodiment of the present invention.

Detailed Description

The utility model provides an intelligence boot controller, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the following reference is made to the figure and the example is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, it being understood that the data so used may be interchanged under appropriate circumstances. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such system, article, or apparatus.

Example (b):

Fig. 1 is a functional block diagram of an intelligent trunk controller according to a preferred embodiment of the present invention.

as shown in fig. 1, an intelligent trunk controller includes: ZIGBEE wireless module and wireless module of awakening up, ZIGBEE wireless module includes little the control unit MCU, little the control unit MCU with wireless module of awakening up electric connection. The ZIGBEE wireless module mainly comprises a radio frequency chip CC2530 and a matching circuit, the wireless awakening module mainly comprises an AS3933 chip and the matching circuit, data transmission is carried out between the AS3933 chip and the matching circuit through an SPI interface, and the CC2530 chip is configured with the AS3933 chip through the SPI interface.

The AS3933 chip is connected with a low-frequency antenna and used for receiving low-frequency signals of 125 KHz. When the AS3933 chip receives the low-frequency signal, a wake-up signal is sent to the CC2530 chip of the ZIGBEE wireless module, so that the CC2530 chip is switched to a working state from a dormant state, the CC2530 chip adopts a ZIGBEE protocol to establish a wireless networking, and recorded trunk information, such AS the number of times of opening a trunk, the time of opening the trunk, the state of the trunk, abnormal conditions and the like, is sent out through wireless transmission, so that a bank can conveniently inquire and track.

As shown in FIG. 2, the CC2530 chip U8 can realize the networking function of the ZIGBEE wireless module, and the working frequency of the ZIGBEE wireless module is 2.4 GHz. The CC2530 chip U8 has integrated inside it an RF transceiver comprising at least one RF transceiver port connected to a high frequency antenna Y1.

In particular, the RF transceiver comprises an RF transceiving port a RF _ N (26 pin) and an RF transceiving port B RF _ P (25 pin); the RF transceiving port A RF _ N is connected with one end of a third capacitor C17 through a first capacitor C14 and a second capacitor C15 which are connected in sequence; the RF transceiving port B RF _ P is connected with one end of the third capacitor C17 through a fourth capacitor C16 and a first inductor L3 which are connected in sequence; the other end of the third capacitor C17 is connected to one end of the high-frequency antenna S1, and the other end of the high-frequency antenna S1 is grounded. The first capacitor C14 and the second capacitor C15 are grounded through a second inductor L2, and the fourth capacitor C16 and the first inductor L3 are grounded through a fifth capacitor C18.

The CC2530 chip U8 is also connected with a 32MHz crystal oscillator, and the communication frequency of 2.4GHz is ensured. Specifically, the CC2530 chip U8 includes a crystal oscillator port a XOSC _ Q1(22 pins) and a crystal oscillator port B XOSC _ Q2(23 pins), the crystal oscillator port a XOSC _ Q1 and the crystal oscillator port B XOSC _ Q2 are connected to two ends of a crystal oscillator Y1, and two ends of the crystal oscillator Y1 are further grounded through capacitors C19 and C20, respectively.

The 15 pin of the U8 of the CC2530 chip is an input pin of a wake-up signal, so that the U8 of the CC2530 chip is woken up in a low-power-consumption sleep mode. And 5 pins, 6 pins, 37 pins and 38 pins of the U8 chip of the CC2530 realize SPI communication with the wireless wake-up module.

the AS3933 chip is a three-channel low-frequency wake-up receiver with a frequency range of 15-150 kHz. AS shown in fig. 3, the AS3933 chip U7 includes a WAKE port, an SDO port, an SDI port, an SCL port, and an SC port, which correspond to the 14 pin, 4 pin, 3 pin, 2 pin, and 1 pin of the AS3933 chip U7, respectively.

The wireless wake-up module detects whether a 125KHz signal exists in real time. When the wireless wakeup module does not receive a low frequency signal within a preset time period (for example, greater than or equal to 10 seconds), the CC2530 chip U8 is in a sleep state; when the wireless WAKE-up module detects a 125KHz trigger signal from the outside, the WAKE port (14 pin) of the AS3933 chip U7 outputs a WAKE-up interrupt signal. The WAKE port is connected to the 15 pin of the U8 of the CC2530 chip, and the detection of the WAKE-up interrupt signal by the 15 pin of the U8 of the CC2530 chip triggers the U8 of the CC2530 chip to enter a WAKE-up state, i.e., enter a normal operating state from a sleep mode in a low power consumption state.

An SDO port (4 pin), the SDI port (3 pin), the SC port (1 pin) and the SCL port (2 pin) of the AS3933 chip U7 are respectively connected with a 37 pin, a 38 pin, a 6 pin and a 5 pin of the CC2530 chip U8, and are used for the CC2530 chip U8 to carry out read-write setting on the AS3933 chip U7.

the AS3933 chip U7 further includes LF transceiver ports a LFN and B LF transceiver ports B LF1P, corresponding to pins 10 and 9 of the AS3933 chip U7, respectively. The LF transceiving port A LFN is grounded; the LF transceiving port B LF1P is grounded through the low frequency antenna S2; the LF transceiving port B LF1P is also grounded through a capacitor C24 and a resistor R13 connected in parallel.

the intelligent trunk controller further comprises: the lithium battery J1 is connected with the low-frequency antenna S2, the AS3933 chip U7 and the CC2530 chip U8 respectively, is provided with a charging interface, and the charging interface is connected with an external power socket J2 through a charging and discharging protection circuit.

As shown in fig. 4, the charge and discharge protection circuit is used for protecting the lithium battery J1 from overcharge, overdischarge and overcurrent, and includes a battery protection chip U6, and the battery protection chip U6 is a DW01AZ chip. Specifically, the battery protection chip U6 includes a first pin OD, a second pin SC, a third pin OC, a fourth pin TD, a fifth pin VCC, and a sixth pin GND. The first pin OD is connected with the grid electrode of a first field effect transistor Q3, and the source electrode of the first field effect transistor Q3 is connected with the negative electrode (2 pin) of the lithium battery J1; the second pin SC is grounded through a first resistor R15 of the battery protection chip; the third pin OC is connected with the gate of a second field effect transistor Q4, the source of the second field effect transistor Q4 is grounded, and the drain of the second field effect transistor Q4 is connected with the drain of the first field effect transistor Q3; the five pins VCC are connected with one end of a second resistor R10 of the battery protection chip, and the other end of the second resistor R10 of the battery protection chip is connected with the anode (1 pin) of the lithium battery J1; the other end of the second resistor R10 of the battery protection chip is also connected with the cathode of a diode D3, and the anode of the diode D3 is connected with the power supply pin of the external power socket J2; the six pins GND are connected with the negative electrode (2 pins) of the lithium battery J1, and a capacitor C22 is further connected between the sixth pin GND and the fifth pin VCC.

When the external power socket J2 is connected to an external power supply, current flows to the lithium battery J1, and the diode D3 is used for limiting the flowing direction of the current and preventing the lithium battery J1 from outputting reversely.

In the process of charging the lithium battery J1, when the voltage of the lithium battery J1 exceeds a specific value, a third pin OC output signal of the battery protection chip U6 turns off the second field-effect transistor Q4, and the lithium battery J1 stops charging immediately, so that the lithium battery J1 is prevented from being damaged due to overcharge; when the voltage of the lithium battery J1 drops to a specific value, the first pin OD pin of the battery protection chip U6 outputs a signal to turn off the first field effect transistor Q3, and the lithium battery J1 immediately stops discharging, so that the lithium battery J1 is prevented from being damaged due to over-discharge. The second pin SC of the battery protection chip U6 is a current detection pin, when the output is short-circuited, the on-state voltage of the first field-effect transistor Q3 and the second field-effect transistor Q4 sharply increases, the voltage of the second pin SC rapidly increases, and the battery protection chip U6 outputs a signal to rapidly turn off the first field-effect transistor Q3 and the second field-effect transistor Q4, thereby implementing overcurrent or short-circuit protection. The first field effect transistor Q3 and the second field effect transistor Q4 are both N-channel enhancement type MOS field effect transistors.

To sum up, the intelligent trunk controller that this application provided need not to open the trunk case lid, can realize the inquiry and the tracking to the unpacking number of times, time, trunk state, the abnormal conditions of trunk, ensures the warehouse entry safety of cominging in and going out of fund, has safety, reliability height, intellectuality, convenient to use, a great deal of advantage such as low power dissipation, has good market value and use value.

The above detailed description of the embodiments of the present invention is only for exemplary purposes, and the present invention is not limited to the above described embodiments. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.

Claims

1. An intelligent trunk controller, comprising: the system comprises a ZIGBEE wireless module and a wireless wake-up module, wherein the ZIGBEE wireless module comprises a Micro Control Unit (MCU), and the MCU is electrically connected with the wireless wake-up module; wherein,

2. The intelligent trunk controller of claim 1, wherein: and when the wireless wake-up module does not receive the low-frequency signal within a preset time period, the MCU is in a dormant state.

3. The intelligent trunk controller of claim 1, wherein: the MCU is a ZIGBEE chip, and the working frequency is 2.4 GHz.

4. The intelligent trunk controller of claim 1, wherein: an RF transceiver is integrated in the MCU, and comprises an RF transceiving port A and an RF transceiving port B;

The other end of the third capacitor is connected with one end of a high-frequency antenna, and the other end of the high-frequency antenna is grounded;

5. The intelligent trunk controller of claim 1, wherein: the micro control unit MCU comprises a crystal oscillator port A and a crystal oscillator port B, the crystal oscillator port A and the crystal oscillator port B are connected with two ends of a crystal oscillator, and the two ends of the crystal oscillator are grounded through a capacitor respectively.

6. The intelligent trunk controller of claim 1, wherein: the low-frequency signal received by the wireless awakening module is a wireless low-frequency signal with the working frequency band of 125 KHz.

7. The intelligent trunk controller of claim 1, wherein: the wireless WAKE-up module comprises a WAKE port, an SDO port, an SDI port, an SCL port and an SC port, the WAKE port is connected with an IO port of the MCU, and the SDO port, the SDI port, the SC port and the SCL port are respectively connected with an SPI port of the MCU.

8. The intelligent trunk controller of claim 1, wherein: the wireless wake-up module comprises an LF (low frequency) transceiving port A and an LF transceiving port B;

The LF transceiving port A is grounded;

The LF transceiving port B is grounded through the low-frequency antenna;

9. The intelligent trunk controller of claim 1, wherein: the intelligent trunk controller further comprises: the lithium battery is connected with the low-frequency antenna, the wireless awakening module and the micro control unit MCU respectively, and is provided with a charging interface which is connected with an external power socket through a charging and discharging protection circuit.

10. The intelligent trunk controller of claim 9, wherein: the charging and discharging protection circuit comprises a battery protection chip, wherein the battery protection chip comprises a first pin, a second pin, a third pin, a fourth pin, a fifth pin and a sixth pin; wherein,