Low-cost wireless code matching meal taking device
Through wireless transmission technology, the problem of high cost of existing meal pickers has been solved, and a low-cost wireless code picker is designed, which uses wireless receiving chips and processing chips to achieve fast code pickup, which is suitable for large-scale production and intensive consumption places. Use of
Patent Information
- Application Number
- CN202421071232.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The existing meal pickers adopt wired transmission, which leads to high costs and is difficult to meet the needs of large-scale production and intensive consumption places.
A low-cost wireless code pickup meal pickup is designed, using wireless transmission technology to achieve fast code pickup through the control area on the front desk host and pluggable food pickup caller, using wireless receiving chips and processing chips to achieve rapid code pickup, reducing costs. Invest.
It realizes wireless coding, reduces costs, is suitable for batch production and manufacturing, meets the needs of large-scale use, and simplifies the structure and operation of the dining picker.
Smart Images
Figure CN222281321U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of meal pickers, in particular to a low-cost wireless code-matching meal picker. Background Art
[0002] The concept of the known meal pickup caller is introduced from abroad, where it is usually called "wireless paging system". Initially, this type of product was mainly used in restaurants where customers need to pay before picking up their meals, such as fast food restaurants, dessert shops, and coffee shops. Later, it was also widely used in pharmacies, hospitals, casinos, schools, 4S stores and other places. The meal pickup caller is a communication system, which mainly consists of two parts: a base station and a group of receivers. The base station transmits digital signals, and the receiver receives these digital signals and converts them into audible sounds. The operating principle of this system is actually very simple. The base station will continuously send different digital signals to the receiver, and each receiver will respond to different digital signals and convert the digital signals into corresponding sounds. In recent years, with the reduction of consumption venues and service personnel, the more traditional pre-set number matching (matching numbers in advance) has gradually failed to meet the needs of places with large traffic and intensive customer consumption. For example, the code matching method of the meal pickup sub-machine on the market is realized by wired transmission, which must use AD acquisition function. The single-chip microcomputer of each sub-machine must have AD pins, which greatly increases the cost investment, so it is necessary to improve the existing technology. Utility Model Content
[0003] 1. Technical issues that need to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides a low-cost wireless code-matching meal pick-up device, which ends the wired method and adopts wireless transmission for rapid code matching, greatly reducing the cost investment and being more conducive to meeting the requirements of mass production and manufacturing.
[0005] 2. Technical solutions that need to be adopted
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A low-cost wireless pairing meal pickup device comprises a front desk host and a pluggable meal pickup call device, the front desk host is provided with at least one first charging card slot with three first pin contact pieces and at least one second charging card slot with two second pin contact pieces, the pluggable meal pickup call device is installed in the first charging card slot and the second charging card slot, the front desk host is provided with a control area, when the meal pickup call device is inserted into the first charging card slot, the meal pickup call device in the first charging card slot changes from a charging state to a pairing state, and the meal pickup call device in the first charging card slot is quickly paired through the control area.
[0008] Preferably, the meal call device includes a main body, on which a first copper column, a second copper column and a third copper column are arranged, a wireless receiving chip is arranged inside the main body, a first display screen is arranged on the main body, a processing chip is arranged inside the main body, the processing chip is connected to the wireless receiving chip and the first display screen, and the first copper column, the second copper column and the third copper column are respectively connected to the processing chip.
[0009] Preferably, the first display screen is a digital tube display screen.
[0010] Preferably, the first copper pillar, the second copper pillar and the third copper pillar are all PCB copper pillars.
[0011] Preferably, the first copper column is connected to the negative power copper column on the front-end host, the second copper column is connected to the positive power copper column on the front-end host, and the third copper column is connected to the positive power copper column on the front-end host.
[0012] Preferably, the control area includes a main chip arranged inside the front-end host, a wireless transmitting chip is arranged on the main chip, and a second display screen, numeric keys from 0 to 9, a phone key, a setting key, an exit key, a quick pairing key, an increase key and a decrease key are arranged on the surface of the front-end host.
[0013] Preferably, the three first pin contact pieces include three host PCB boards distributed inside the front host, and three first metal needles are arranged in the first charging card slot, and the three first metal needles are correspondingly arranged on the corresponding three host PCB boards, and are connected and inserted into the first charging card slot through the three first metal needles, and the two second pin contact pieces include host PCB boards on both sides of the three distributed host PCB boards, and corresponding second metal needles are arranged on the host PCB boards on both sides, and the second metal needles are located in the second charging card slot.
[0014] 3. Technical effects to be achieved
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] Firstly, the utility model provides at least one first charging card slot with three first pin contact pieces and at least one second charging card slot with two second pin contact pieces on the front-end host, and pluggable meal call devices are installed in the first charging card slot and the second charging card slot, and a control area is provided on the front-end host, and when the meal call device is inserted into the first charging card slot, the meal call device in the first charging card slot changes from a charging state to a pairing state, and the meal call device in the first charging card slot is quickly paired through the control area, which ends the wired method and adopts wireless transmission for quick pairing, which greatly reduces the cost investment and is more conducive to meeting the requirements of mass production.
[0017] Secondly, the meal call device of the utility model includes a main body, on which a first copper column, a second copper column and a third copper column are arranged, a wireless receiving chip is arranged inside the main body, a first display screen is arranged on the main body, a processing chip is arranged inside the main body, the processing chip is connected to the wireless receiving chip and the first display screen, and the first copper column, the second copper column and the third copper column are respectively connected to the processing core. This arrangement is reasonable and has a simple structure, which is conducive to realizing wireless transmission for rapid code matching, greatly reduces the cost investment, and is more conducive to meeting mass production requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the utility model.
[0019] Figure 2 It is a schematic diagram of the decomposition of the utility model.
[0020] Figure 3 It is an overall schematic diagram of the meal pickup call device of the present utility model.
[0021] Figure 4 This is a schematic diagram of the distribution of the first metal pins and the second metal pins on the host PCB board inside the front host of the utility model.
[0022] Figure 5 The utility model is a circuit diagram of the meal pickup call device (sub-machine).
[0023] Figure 6 This is a schematic diagram of the front-end host transmission attenuation circuit of the utility model.
[0024] Figure 7 This is a schematic diagram of the quick code pairing operation of the utility model.
[0025] In the figure: 1, front desk host; 2, meal pickup call button; 11, first pin contact piece; 12, first charging card slot; 13, second pin contact piece; 14, second charging card slot; 15, control area; 21, main body; 22, first copper pillar; 23, second copper pillar; 24, third copper pillar; 111, host PCB board; 112, first metal pin; 131, second metal pin; 150, main chip; 151, second display screen; 152, numeric keys; 153, phone keys; 154, setting keys; 155, exit keys; 156, quick pairing keys; 157, increase keys; 158, decrease keys. DETAILED DESCRIPTION
[0026] In the description of the present utility model, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0027] In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.
[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.
[0030] Example 1: See Figure 1 and Figure 2 A low-cost wireless code-pairing meal pickup device includes a front-end host 1 and a pluggable meal pickup call device 2 (also called a slave device), the front-end host 1 is provided with at least one first charging card slot 12 with three first pin contact pieces 11 and at least one second charging card slot 14 with two second pin contact pieces 13, the first charging card slot 12 and the second charging card slot 14 are installed with the pluggable meal pickup call device 2, and the front-end host 1 is provided with a control area 15, such as Figure 6 As shown, when the meal pickup call device 2 is inserted into the first charging card slot 12, the meal pickup call device 2 in the first charging card slot 12 changes from the charging state to the pairing state, and can also be charged at the same time. The meal pickup call device 2 in the first charging card slot 12 is quickly paired (displayed as ID number) through the control area 15, that is, a wireless signal is transmitted, and when the meal pickup call device 2 is taken out of the first charging card slot 12, the meal pickup call device 2 automatically exits the pairing state, and the meal pickup call device 2 can achieve quick pairing through the control area 15 on the front host 1. When in use, the user only needs to call the meal pickup call device 2 after quick pairing through the control area 15, and the meal pickup call device 2 starts to alarm to remind the customer to pick up the meal for consumption. In the present embodiment, the number of the first charging slots 12 of the three first pin contact pieces 11 is one, and the number of the second charging slots 14 of the two second pin contact pieces 13 is at least two, wherein the number of the second charging slots 14 of the two second pin contact pieces 13 is eight, wherein the second charging slots 14 of the two second pin contact pieces 13 are installed with a meal call device 2 (also a sub-unit) for charging, and eight can be charged at one time, which can better meet usage requirements.
[0031] Embodiment 2: It can be explained on the basis of embodiment 1, such as Figure 2 , Figure 3 and Figure 5As shown, the meal call device 2 includes a main body 21, on which a first copper column 22, a second copper column 23 and a third copper column 24 are arranged, a wireless receiving chip is arranged inside the main body 21, a first display screen is arranged on the main body 21, and the first display screen adopts a digital tube display screen, a processing chip is arranged inside the main body 21, and the processing chip is connected to the wireless receiving chip 25 and the first display screen, and the first copper column 22, the second copper column 23 and the third copper column 24 are respectively connected to the processing chip (also known as a sub-machine PCB board), and the meal call device 2 is inserted into the first charging card slot 12 of the three first pin contact pieces 11, and the meal call device 2 in the first charging card slot 12 changes from a charging state to a pairing state, and the first display screen on the meal call device 2 in the first charging card slot 12 becomes a horizontal bar flashing, and then the meal call device 2 can achieve fast pairing through the control area 15 on the front host 1.
[0032] I want to explain that if Figure 2 and Figure 3 As shown, the first copper pillar 22, the second copper pillar 23 and the third copper pillar 24 are all made of PCB copper pillars, which are widely available and easy to implement. It is also worth noting that the first copper pillar 22 is connected to the negative copper pillar (GND) of the power supply on the front host 1, that is, the first copper pillar 22 contacts the output ground on the front host 1 to share the reference ground, the second copper pillar 23 is connected to the positive copper pillar (VCC) of the power supply on the front host 1, and the third copper pillar 24 is connected to the positive copper pillar (VCC) of the power supply on the front host 1, that is, the second copper pillar 23 and the third copper pillar 24 are both in contact with the output power positive pole VCC on the front host 1. At this time, the control area 15 detects that the second copper pillar 23 and the third copper pillar 24 have a high level, so the meal call device 2 automatically enters the code waiting state, the digital tube display screen on the meal call device 2 displays three horizontal bars and keeps flashing, the alarm indicator lights around the meal call device 2 are always on, and the charging indicator light of the meal call device 2 is off.
[0033] The second copper pillar 23 is divided by a voltage divider resistor and then sent to the pin of the single-chip microcomputer in the control area 15 (greater than 0.7 times the TTL level, when the second copper pillar 23 is not connected to the positive pole of the power supply, it is pulled down by the voltage divider resistor to maintain a stable state), and the third copper pillar 24 is divided by a voltage divider resistor and then sent to the pin of the single-chip microcomputer in the control area 15 (greater than 0.7 times the TTL level, when the third copper pillar 24 is not connected to the positive pole of the power supply, it is pulled down by the voltage divider resistor to maintain a stable state).
[0034] Embodiment 3: It can be described on the basis of Embodiment 1 or Embodiment 2, such as Figure 4 , Figure 5 and Figure 6 As shown, the control area 15 includes a main chip 150 disposed inside the foreground host 1 (the main chip 150 contains a single chip microcomputer, such as Figure 4As shown in FIG. 1 , a wireless transmitting chip is arranged on the main chip 150, and a second display screen 151, digital keys 152 from 0 to 9, a telephone key 153 ( ), a setting key 154 (R), an exit key 155, a quick code key 156, an increase key 157 and a decrease key 158 are arranged on the surface of the foreground host 1. Figure 5 As shown, when the high level is detected at the 2nd pin in the main chip 150, the output of the 4th pin is continuously high, and after receiving the shutdown command of the corresponding host ID, it is pulled low.
[0035] Embodiment 4: It can be described on the basis of Embodiment 1, Embodiment 2 or Embodiment 3, such as Figure 2 and Figure 4 As shown, the three first pin contact pieces 11 include three distributed host PCB boards 111 arranged inside the front host 1, and three first metal needles 112 are arranged in the first charging card slot 12, and the three first metal needles 112 are correspondingly arranged on the corresponding three host PCB boards 111, and are connected and inserted into the first charging card slot 12 through the three first metal needles 112, and the two second pin contact pieces 13 include the host PCB boards 111 on both sides of the three distributed host PCB boards 111, and the host PCB boards 111 on both sides are provided with corresponding second metal needles 131, and the second metal needles 131 are located in the second charging card slot 14.
[0036] The utility model inserts the meal pickup call device 2 (also called the slave) into the first charging card slot 12 with three first pin contact pieces 11, and the meal pickup call device 2 in the first charging card slot 12 changes from the charging state to the code entering state, and the digital tube display screen on the meal pickup call device 2 in the first charging card slot 12 changes to a horizontal bar flashing, and at this time, the meal pickup call device 2 in the first charging card slot 12 automatically enters the code waiting state, and then when the digital keys 152 (1-9 digital keys, such as inputting any three-digit numbers that can be combined from 1 to 9, 000 and 999 settings are invalid and not allowed to be used) on the front desk host 1 are pressed, for example, 666 is input, and then the fast code matching key 156 is pressed, the single chip microcomputer in the main chip 150 sends the serial data to the data loading pin of the wireless transmitting chip, and then the wireless transmitting chip mixes the serial data into the radio electromagnetic wave of 433.92MHz, and then sends it to the wireless radio frequency switch, and the single chip microcomputer in the main chip 150 controls the wireless radio frequency switch to switch to open the π-type attenuator (that is, open the π-type attenuation channel). Therefore, after pressing the 156 key, the wireless transmitter chip starts to emit 433.92MHz radio electromagnetic waves carrying the serial data of the code. Figure 6As shown (104dB attenuation π-type network path is the shortest, copper foil is wrapped around the network), the π-type network is attenuated into a very small wireless signal through the wireless RF switch and then radiated out. In this way, the code is quickly matched. Within a dense medium and short distance range, multiple front desk hosts 1 and meal pickup call devices 2 will not affect each other when they are quickly matched (it will not affect the matching of nearby meal pickup call devices 2). The number (ID) displayed on the digital tube display screen of the meal pickup call device 2 is locked and consistent with the number set on the front desk host 1 through the control area 15, and remains unchanged, finally realizing the fast matching of the front desk host 1 and the meal pickup call device 2. When the meal pickup call device 2 is taken out from the first charging card slot 12, the meal pickup call device 2 automatically exits the matching state, and the meal pickup call device 2 can achieve fast matching through the control area 15 on the front desk host 1. When in use, the user only needs to call the meal pickup call device 2 after the fast matching through the control area 15, and the meal pickup call device 2 will start to alarm and remind the customer to pick up the meal.
[0037] The standard parts used in this application document can all be purchased from the market, and the specific connection methods of each part adopt conventional means such as mature bolts and rivets in the existing technology. The internal components of the chip and processor all adopt conventional models in the existing technology, and their internal structures belong to the existing technology structure. Workers can complete normal operation according to the existing technical manual. In addition, the circuit connection adopts the conventional connection method in the existing technology, and no specific description is given here.
[0038] It should be noted that although the above embodiments have been described in this article, this does not limit the scope of patent protection of the utility model. Therefore, based on the innovative concept of the utility model, changes and modifications to the embodiments described in this article, or equivalent structural or equivalent process changes made using the contents of the utility model specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the utility model patent.
Claims
1. A low-cost wireless code-pairing meal pickup device, comprising a front-end host (1) and a pluggable meal pickup call device (2), characterized in that: The front-end host (1) is provided with at least one first charging card slot (12) having three first pin contact pieces (11) and at least one second charging card slot (14) having two second pin contact pieces (13); the first charging card slot (12) and the second charging card slot (14) are provided with the meal pickup call device (2) which can be plugged in and out; the front-end host (1) is provided with a control area (25); when the meal pickup call device (2) can be inserted into the first charging card slot (12), the charging state of the meal pickup call device (2) in the first charging card slot (12) is changed to a pairing state; the meal pickup call device (2) in the first charging card slot (12) is quickly paired through the control area (15).
2. The low-cost wireless code-matching meal pickup device according to claim 1, characterized in that: The meal call device (2) comprises a main body (21), the main body (21) being provided with a first copper column (22), a second copper column (23) and a third copper column (24), a wireless receiving chip being provided inside the main body (21), a first display screen being provided on the main body (21), a processing chip being provided inside the main body (21), the processing chip being connected to the wireless receiving chip and the first display screen, and the first copper column (22), the second copper column (23) and the third copper column (24) being connected to the processing chip respectively.
3. The low-cost wireless code-matching meal pickup device according to claim 2, characterized in that: The first display screen is a digital tube display screen.
4. The low-cost wireless code-matching meal pickup device according to claim 2, characterized in that: The first copper pillar (22), the second copper pillar (23) and the third copper pillar (24) are all PCB copper pillars.
5. The low-cost wireless code-matching meal pickup device according to claim 2, characterized in that: The first copper column (22) is a copper column connected to the negative power supply of the front-end host (1), the second copper column (23) is a copper column connected to the positive power supply of the front-end host (1), and the third copper column (24) is a copper column connected to the positive power supply of the front-end host (1).
6. The low-cost wireless code-matching meal pickup device according to claim 1, 2, 3, 4 or 5, characterized in that: The control area (15) comprises a main chip (150) arranged inside the front host (1), a wireless transmission chip being arranged on the main chip (150), and a second display screen (151), number keys (152) from 0 to 9, a telephone key (153), a setting key (154), an exit key (155), a quick pairing key (156), an increase key (157) and a decrease key (158) being arranged on the surface of the front host (1).
7. The low-cost wireless code-matching meal pickup device according to claim 1, 2, 3, 4 or 5, characterized in that: The three first pin contact pieces (11) include three distributed host PCB boards (111) arranged inside the front host (1), and three first metal pins (112) are arranged in the first charging card slot (12), and the three first metal pins (112) are correspondingly arranged on the three corresponding host PCB boards (111), and are connected and inserted into the first charging card slot (12) through the three first metal pins (112), and the two second pin contact pieces (13) include host PCB boards (111) on both sides of the three distributed host PCB boards (111), and the host PCB boards (111) on both sides are provided with corresponding second metal pins (131), and the second metal pins (131) are located in the second charging card slot (14).