POS machine mainboard and POS machine
By designing a power management scheme for the POS machine motherboard, a supercapacitor module is used to provide backup power for the POS machine during power outages. This solves the problems of data loss and reliability of the POS machine during power outages, reduces development costs, and facilitates transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-07
AI Technical Summary
Existing POS machines are prone to data loss and transaction failure during power outages, and existing solutions such as battery-powered POS machines are not very reliable and have high development and application costs.
Design a POS machine motherboard that uses a first DC-DC module to convert DC power and then distributes it to a supercapacitor module and a second DC-DC module. In the event of a power outage, the supercapacitor module supplies power to the power management module through the second DC-DC module, ensuring data protection and backup power.
It enables data protection and delayed shutdown in the event of a power outage, reduces application development costs, improves the reliability of the POS machine, and facilitates transportation.
Smart Images
Figure CN224096239U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to POS machine technical field more specifically, relate to a POS machine mainboard and POS machine. BACKGROUND
[0002] With the development of the Internet of Things technology, the application of Internet of Things devices is becoming more and more popular, and Internet of Things devices generally need to rely on Internet data to work. When the Internet of Things devices relying on data exchange suddenly face power failure, not only is it easy to cause data loss, transaction failure and other situations in the moment of power failure, but also it will delay the time of many queuing users. For the Internet of Things devices commonly used in mobile payment at present, especially the POS machine used for cash register, although there are POS machines with batteries or using UPS (Uninterruptible Power Supply) on the market, which can not be affected by power failure, but the development and application cost of the POS machine using UPS is relatively high, and the reliability of the POS machine with battery is not high, which leads to inconvenient transportation, such as the restriction of battery equipment in aviation. SUMMARY
[0003] The technical problem to be solved by the utility model is to provide a POS machine mainboard and POS machine for the above defects of the prior art.
[0004] The technical scheme adopted by the utility model to solve its technical problem is:
[0005] On the one hand, the utility model provides a POS machine mainboard, which comprises a main control module, a super capacitor module, a power management module, a first DC-DC module and a second DC-DC module; the first end of the first DC-DC module is connected to a direct current power supply input end; the second end of the first DC-DC module is connected with the first end of the second DC-DC module, the second end of the second DC-DC module is connected with the first end of the power management module, and the second end of the power management module is connected with the first end of the main control module; the third end of the first DC-DC module is connected with the first end of the super capacitor module, the second end of the super capacitor module is connected with the third end of the second DC-DC module, and the third end of the super capacitor module is connected with the second end of the main control module.
[0006] In some embodiments, the POS machine mainboard further comprises a super capacitor detection module, the first end of the super capacitor detection module is connected with the third end of the super capacitor module, and the second end of the super capacitor detection module is connected with the second end of the main control module.
[0007] In some embodiments, the first DC-DC module comprises a 24V-to-12V circuit connected with the DC power input, the second DC-DC module and the super capacitor module respectively.
[0008] In some embodiments, the second DC-DC module comprises a 12V-to-3.3V circuit and a 12V-to-5V circuit, the 12V-to-3.3V circuit being connected with the 24V-to-12V circuit, the power management module and the super capacitor module respectively, and the 12V-to-5V circuit being connected with the 24V-to-12V circuit, the power management module and the super capacitor module respectively.
[0009] In some embodiments, the power management module comprises a PMIC circuit connected with the 12V-to-3.3V circuit, the 12V-to-5V circuit and the master control module respectively.
[0010] In some embodiments, the super capacitor in the super capacitor module has a capacity of 2F, 4F or 6F.
[0011] In some embodiments, the POS mainboard further comprises a serial port module, a network port module, a flash memory module and a memory module, which are connected with the master control module respectively.
[0012] In some embodiments, the POS mainboard further comprises a wireless communication module and a USB module, which are connected with the master control module respectively.
[0013] In some embodiments, the POS mainboard is further connected with a display.
[0014] In another aspect, the utility model also provides a POS machine, the POS machine includes the POS mainboard of any one of the above.
[0015] The utility model has the advantages that, different from the prior art, the POS mainboard of the utility model, through the first DC-DC module conversion direct current and then two paths to the super capacitor module and the second DC-DC module, direct conversion through the second DC-DC module and then to the power management module, then by power management module power management to the master control module, direct current power off, by the super capacitor module power supply to the second DC-DC module, and then conversion through the second DC-DC module and to the power management module, thereby providing reasonable reaction time to carry out data protection and standby power supply, and can effectively reduce the development application cost, the reliability is higher, is applied to the POS machine, and the use and transportation of the POS machine are facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1is a principle block diagram of the POS machine mainboard in the embodiment of the utility model;
[0017] Figure 2 is a working flow schematic diagram of the POS machine mainboard in the embodiment of the utility model;
[0018] Marked name and serial number in the drawing: main control module-10, super capacitor module-11, power management module-12, first DC-DC module-13, second DC-DC module-14, super capacitor detection module-15, serial port module-16, network port module-17, flash memory module-18, memory module-19, wireless communication module-20, USB module-21, display-22. DETAILED DESCRIPTION
[0019] The terms "first", "second", "third", and "fourth" and the like in the description and in the claims of the present document are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprising", "including", "containing", and "having" and the like are used inclusively and open- ended and are intended to permit the occurrence of additional elements not otherwise mentioned so long as such elements do not exclude the addition of other elements utilized in the processes, methods, articles, or apparatus described herein.
[0020] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present document. The appearances of the phrase that in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of other embodiments. It is expressly understood that the embodiments described herein are merely examples from a multitude of embodiments that are in substantial compliance with the principles of the present document. It is expressly intended that the embodiments described herein are only examples from a multitude of embodiments that are in substantial compliance with the principles of the present document.
[0021] "Multiple" means two or more than two. "And / or", describing the association between the associated objects, means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B exist at the same time, and B alone. The character " / " generally represents that the associated objects before and after are a "or" relationship.
[0022] Moreover, the terms "upper", "lower", "front", "back", "left", "right", "upper end", "lower end", and the like indicating the orientation are all with reference to the attitude position of the device or equipment described in the present scheme in normal use.
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] Example 1: This embodiment of the utility model provides a POS machine motherboard, such as... Figure 1 As shown, the POS machine motherboard includes a main control module 10, a supercapacitor module 11, a power management module 12, a first DC-DC module 13, and a second DC-DC module 14. The first terminal of the first DC-DC module 13 is connected to the DC power input terminal. The second terminal of the first DC-DC module 13 is connected to the first terminal of the second DC-DC module 14, the second terminal of the second DC-DC module 14 is connected to the first terminal of the power management module 12, and the second terminal of the power management module 12 is connected to the first terminal of the main control module 10. The third terminal of the first DC-DC module 13 is connected to the first terminal of the supercapacitor module 11, the second terminal of the supercapacitor module 11 is connected to the third terminal of the second DC-DC module 14, and the third terminal of the supercapacitor module 11 is connected to the second terminal of the main control module 10.
[0025] Furthermore, in this embodiment, the POS machine motherboard also includes a supercapacitor detection module 15. The first terminal of the supercapacitor detection module 15 is connected to the third terminal of the supercapacitor module 11, and the second terminal of the supercapacitor detection module 15 is connected to the second terminal of the main control module 10. After the 24V DC power supply is cut off, the main control module 10 sends a DC power failure signal to the supercapacitor detection module 15. The supercapacitor detection module 15 then detects the supercapacitor module 11 and activates it to supply power to the main control module 10 through the supercapacitor module 11 during power failure.
[0026] Specifically, in this embodiment, the first DC-DC module 13 includes a 24V to 12V circuit, which is connected to the DC power input terminal, the second DC-DC module 14, and the supercapacitor module 11. The second DC-DC module 14 includes a 12V to 3.3V circuit and a 12V to 5V circuit. The 12V to 3.3V circuit is connected to the 24V to 12V circuit, the power management module 12, and the supercapacitor module 11, respectively. The 12V to 5V circuit is also connected to the 24V to 12V circuit, the power management module 12, and the supercapacitor module 11. The power management module 12 includes a PMIC circuit, which is connected to the 12V to 3.3V circuit, the 12V to 5V circuit, and the main control module 10.
[0027] Further, in the embodiment, the POS machine mainboard further comprises a serial port module 16, a network port module 17, a flash memory module 18 and a memory module 19, and the serial port module 16, the network port module 17, the flash memory module 18 and the memory module 19 are connected with the main control module 10 respectively. The serial port module 16 is, for example, a TTL serial port; the network port module 17 is, for example, an RJ45 network port; the memory module 19 is, for example, a DDR memory; and the flash memory module 18 is, for example, an EMMC flash memory.
[0028] Further, in the embodiment, the POS machine mainboard further comprises a wireless communication module 20 and a USB module 21, and the wireless communication module 20 and the USB module 21 are connected with the main control module 10 respectively. The wireless communication module 20 comprises a 4G module, a WIFI module and the like. The USB module 21 comprises a USB interface, a USB keyboard, a USB mouse and the like.
[0029] Further, in the embodiment, the POS machine mainboard is further connected with a display 22.
[0030] The working principle of the POS machine mainboard in the specific implementation is described below in combination with the description of the POS machine mainboard in the embodiment, as shown in the following: Figure 2
[0031] The POS machine mainboard is connected to a 24V DC power input end through a 24V DC power adapter to realize DC power supply. First, the first DC-DC module 13 reduces 24V to 12V, and then 12V is divided into two paths, one of which charges the super capacitor module 11, and the other of which is reduced to 3.3V and 5V by the second DC-DC module 14 and is sent to the power management module 12, and then the power management module 12 is divided into 5V, 3.3V, 1.8V, 1.2V, 0.9V, 0.65V to correspond to the power supply of the main control module 10, the DDR memory, the EMMC flash memory, the 4G module, the WIFI module and the display 22. After the 24V DC power is powered off, the super capacitor module 11 provides power to the second DC-DC module 14, and then the second DC-DC module 14 converts 3.3V and 5V to the power management module 12, and then the power management module 12 provides power to the main control module 10, thereby realizing the operation of power supply to the main control module 10 after the 24V DC power is powered off.
[0032] The delayed shutdown time achieved by the supercapacitor module 11 is determined by the overall power consumption and the capacitance of the supercapacitor. For example, the existing supercapacitor model IMK-12.5V-P2FYSDI has an operating voltage of 12.5V, a capacitance of 2F, an operating current of 0-2.2A, and a maximum instantaneous current of 7A. For instance, in a 24V DC powered device, it can maintain a delayed shutdown time of 18 seconds when power consumption drops by 5W, and 9 seconds when power consumption drops by 10W. If a longer delayed shutdown time is required, the capacitance of the supercapacitor can be increased, for example, from 2F to 4F or 6F.
[0033] It should be noted that in this embodiment, the specific circuit structure in each module can be designed and selected according to the actual application needs, and this embodiment does not impose specific limitations; for example, the 24V to 12V circuit, 12V to 3.3V circuit, 12V to 5V circuit and PMIC circuit can all be selected from any existing suitable circuit, and the actual application shall prevail.
[0034] Example 2: This embodiment of the present invention also provides a POS machine, which includes the POS machine motherboard provided in Example 1. This motherboard has low power consumption and a long delayed shutdown time, for example, 5-30 seconds, resulting in better POS machine performance, lower development and application costs, and convenient transportation and use. The description of the POS machine motherboard is provided in Example 1 and will not be repeated here.
[0035] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A POS machine motherboard, characterized in that: The POS machine motherboard includes a main control module, a supercapacitor module, a power management module, a first DC-DC module, and a second DC-DC module. A first terminal of the first DC-DC module is connected to a DC power input terminal. A second terminal of the first DC-DC module is connected to the first terminal of the second DC-DC module, and a second terminal of the second DC-DC module is connected to the first terminal of the power management module. The second terminal of the power management module is connected to the first terminal of the main control module. A third terminal of the first DC-DC module is connected to the first terminal of the supercapacitor module, and a second terminal of the supercapacitor module is connected to the third terminal of the second DC-DC module. The third terminal of the supercapacitor module is connected to the second terminal of the main control module.
2. The POS machine motherboard according to claim 1, characterized in that: The POS machine motherboard also includes a supercapacitor detection module, the first end of which is connected to the third end of the supercapacitor module, and the second end of which is connected to the second end of the main control module.
3. The POS machine motherboard according to claim 1, characterized in that: The first DC-DC module includes a 24V to 12V circuit, which is connected to the DC power input terminal, the second DC-DC module, and the supercapacitor module.
4. The POS machine motherboard according to claim 3, characterized in that: The second DC-DC module includes a 12V to 3.3V circuit and a 12V to 5V circuit. The 12V to 3.3V circuit is connected to the 24V to 12V circuit, the power management module, and the supercapacitor module, respectively. The 12V to 5V circuit is also connected to the 24V to 12V circuit, the power management module, and the supercapacitor module, respectively.
5. The POS machine motherboard according to claim 4, characterized in that: The power management module includes a PMIC circuit, which is connected to a 12V to 3.3V circuit, a 12V to 5V circuit, and the main control module.
6. The POS machine motherboard according to any one of claims 1-5, characterized in that: The supercapacitor in the supercapacitor module has a capacity of 2F, 4F, or 6F.
7. The POS machine motherboard according to claim 1, characterized in that: The POS machine motherboard also includes a serial port module, a network port module, a flash memory module, and a memory module, which are connected to the main control module.
8. The POS machine motherboard according to claim 1, characterized in that: The POS machine motherboard also includes a wireless communication module and a USB module, which are respectively connected to the main control module.
9. The POS machine motherboard according to claim 1, characterized in that: The POS machine motherboard is also connected to a monitor.
10. A POS machine, characterized in that: The POS machine includes the POS machine motherboard as described in any one of claims 1-9.