Counting tray

Abstract

The invention discloses a counting tray, belongs to the technical field of trays, and solves the problem that the counting mode of manual visual inspection counting is extremely easy to have errors, and finally the counting of the number of the trays is wrong. Comprising a tray, a radio frequency card fixedly connected to the side wall of the tray, an identification circuit and a counting circuit, the identification circuit sends an identification signal once after identifying the radio frequency card once, and the counting circuit is coupled with the identification circuit and records and displays the number of times once after responding to the identification signal once. In the carrying process of the forklift, when the radio frequency card arranged on the side wall of the tray passes through the Rfid reader, data are captured and sent to the controller, then the trigger circuit activates the counting circuit after verifying the signal so as to automatically count and display on the displayer, and therefore automatic statistics is achieved when goods are placed, and the risk of manual statistics errors is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pallets, in particular to a counting pallet. Background Art

[0002] Pumped-storage power stations rely on large, enclosed warehouses for daily operation. To accommodate the storage needs of various accessories, tools, and goods, multiple sets of sturdy heavy-duty shelves are installed in the warehouses. Furthermore, various specialized storage facilities, such as steel pallets, plastic pallets, and cages, are also provided in accordance with logistics requirements.

[0003] In pumped-storage power stations, dozens of pallets are used to transport these materials. During the frequent round-trip transportation of these equipment and goods, in order to ensure the traceability of the materials, it is necessary to count them based on the number of pallets. However, counting by manual visual inspection is extremely prone to errors, which ultimately leads to errors in the counting of the number of pallets.

[0004] Therefore, a counting tray is proposed to solve or alleviate the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a counting tray.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A counting tray comprises a tray, a radio frequency card fixedly connected to the side wall of the tray, an identification circuit and a counting circuit. The identification circuit sends an identification signal once after identifying the radio frequency card once. The counting circuit is coupled to the identification circuit and records and displays the number of times after responding to the identification signal once.

[0007] Preferably, the identification circuit includes an RFID reader, a controller, and a trigger circuit; The RFID reader is used to send a read signal after reading the radio frequency card; The controller is connected to the RFID reader and outputs a control signal in response to a read signal; The trigger circuit is connected to the output end of the RFID reader and the controller, and outputs an identification signal when the read signal and the control signal are consistent.

[0008] Preferably, the controller includes a modem and a level controller, and the RFID reader is coupled to the level controller via the modem, and outputs a control signal to the trigger circuit in response to a read signal.

[0009] Preferably, the modem outputs a control signal of a BCD code to the trigger circuit in response to a read signal which is a pulse signal.

[0010] Preferably, the level controller is a minimum system based on a single chip microcomputer, the input end of the level controller is coupled to the modem, and outputs a high level to the trigger circuit when the BCD code control signal is consistent with the read signal.

[0011] Preferably, the trigger circuit includes a quasi-stable circuit and a level-triggered D flip-flop, the quasi-stable circuit is coupled to the level controller via an inverter, and responds to a high level to continuously output a high-level quasi-stable signal with a set duration.

[0012] Preferably, the output terminal of the D flip-flop is coupled to a counting circuit, and responds to a high-level transient signal to continuously transmit a trigger signal to the counting circuit.

[0013] Preferably, the counting circuit includes a monostable multivibrator, two 7-segment display decade counters 4026, and two displays, the monostable multivibrator is connected to the output end of the D flip-flop, and the monostable multivibrator is coupled to the display through the 7-segment display decade counter 4026.

[0014] The present invention has the following beneficial effects: The RFID reader of the present invention can read the information of the radio frequency card on the side wall of the pallet passing through the RFID reader when the pallet is moved by a forklift. The RFID reader scans the radio frequency card and sends a signal to the controller. The signal is then verified by the trigger circuit and activates the counting circuit to perform a counting operation. The counting result is displayed on the screen of the display, allowing the pumped storage power station to automatically count the equipment or goods placed on the transport pallet, reducing the possibility of human statistical errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural block diagram of the identification circuit and the counting circuit in the present invention; Figure 3 This is a wiring diagram of the controller and trigger circuit in the present invention; Figure 4 It is the wiring diagram of the counting circuit in the present invention.

[0016] 1. Tray; 2. Radio frequency card; 3. RFID reader; 4. Controller; 5. Trigger circuit; 6. Counting circuit. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] A counting tray, such as Figure 1 and 2 As shown, it includes a tray 1, a radio frequency card 2 fixedly connected to the side wall of the tray 1, an identification circuit, and a counting circuit 6. The identification circuit sends an identification signal once after identifying the radio frequency card 2 once. The counting circuit 6 is coupled to the identification circuit, and after responding to the identification signal once, it records and displays the number of times.

[0019] like Figure 3 As shown, the identification circuit includes an RFID reader 3, a controller 4, and a trigger circuit 5; The RFID reader 3 is used to read the radio frequency card 2 and then send a read signal. The controller 4 is connected to the RFID reader 3 and outputs a control signal in response to the read signal. The trigger circuit 5 connects the output ends of the RFID reader 3 and the controller 4, and outputs an identification signal when the read signal and the control signal are consistent. At the same time, the controller 4 includes a modem and a level controller 4. The RFID reader 3 is coupled to the level controller 4 through the modem, and outputs a control signal to the trigger circuit 5 in response to the read signal. The modem outputs a BCD code control signal to the trigger circuit 5 in response to the read signal which is a pulse signal. The level controller 4 is a minimum system based on a single-chip microcomputer. The input end of the level controller 4 is coupled to the modem, and outputs a high level to the trigger circuit 5 when the BCD code control signal is verified to be consistent with the read signal.

[0020] The trigger circuit 5 includes a quasi-stable circuit and a level-triggered D flip-flop. The quasi-stable circuit is coupled to the level controller 4 through an inverter, and responds to a high level to continuously output a high-level quasi-stable signal with a set duration. The output end of the D flip-flop is coupled to the counting circuit 6, and responds to the high-level quasi-stable signal to continuously transmit the trigger signal to the counting circuit 6. The D flip-flop is a 74LS175 chip, and the quasi-stable circuit is a 555 time base chip.

[0021] like Figure 4 As shown, the counting circuit 6 includes a monostable multivibrator, two 7-segment display decade counters 4026, and two displays. The monostable multivibrator is connected to the output end of the D flip-flop. The monostable multivibrator is coupled to the display through the 7-segment display decade counter 4026. The monostable multivibrator is a 555 time base chip.

[0022] In the present invention, when a forklift is moving, when the pallet 1 with the radio frequency card 2 set on its side wall passes the RFID reader 3, the RFID reader 3 will read the radio frequency card 2 on the pallet 1, and then output a reading signal to the controller 4, which outputs a control signal to the trigger circuit 5 in response to the reading signal. At the same time, the RFID reader 3 will also transmit the reading signal to the trigger circuit 5. When the trigger circuit 5 verifies that the reading signal and the control signal are consistent, it outputs an identification signal to the counting circuit 6. The counting circuit 6 counts after receiving the identification signals one by one, and transmits them to the display for display. In this way, when the pumped storage power station places equipment or other goods on the pallet 1, it can perform statistics during the transportation process without manual statistics, thereby avoiding the situation where the number of pallets 1 is counted incorrectly.

[0023] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A counting tray, characterized in that: The invention comprises a tray (1), a radio frequency card (2) fixedly connected to the side wall of the tray (1), an identification circuit, and a counting circuit (6). The identification circuit sends an identification signal once after identifying the radio frequency card (2) once, and the counting circuit (6) is coupled to the identification circuit, and records and displays the number of times after responding to the identification signal once.

2. A counting tray according to claim 1, characterized in that: The identification circuit comprises an RFID reader (3), a controller (4), and a trigger circuit (5); the RFID reader (3) is used to read the radio frequency card (2) and then send a read signal; the controller (4) is connected to the RFID reader (3), and outputs a control signal in response to the read signal; the trigger circuit (5) is connected to the output end of the RFID reader (3) and the controller (4), and outputs an identification signal when checking that the read signal and the control signal are consistent.

3. A counting tray according to claim 2, characterized in that: The controller (4) includes a modem and a level controller (4), and the RFID reader (3) is coupled to the level controller (4) via the modem, and outputs a control signal to the trigger circuit (5) in response to a read signal.

4. A counting tray according to claim 3, characterized in that: The modem outputs a control signal of a BCD code to a trigger circuit (5) in response to a read signal which is a pulse signal.

5. A counting tray according to claim 4, characterized in that: The level controller (4) is a minimum system based on a single chip microcomputer. The input end of the level controller (4) is coupled to a modem and outputs a high level to a trigger circuit (5) when the BCD code control signal is consistent with the read signal.

6. The counting tray according to claim 3, characterized in that: The trigger circuit (5) comprises a quasi-stable circuit and a level-triggered D flip-flop. The quasi-stable circuit is coupled to the level controller (4) via an inverter and responds to a high level to continuously output a high-level quasi-stable signal with a set duration.

7. The counting tray according to claim 6, characterized in that: The output end of the D trigger is coupled to the counting circuit (6), and responds to the high-level transient state signal to continuously transmit the trigger signal to the counting circuit (6).

8. The counting tray according to claim 6, characterized in that: The counting circuit (6) comprises a monostable multivibrator, two 7-segment display decimal counters 4026, and two displays, wherein the monostable multivibrator is connected to the output end of the D flip-flop, and the monostable multivibrator is coupled to the display via the 7-segment display decimal counters 4026.

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