Elevator DTU device
By installing DTU devices in the elevator, real-time monitoring and seamless communication, the problems of inadequate maintenance and timely rescue are solved, and the safety visual control and efficient maintenance of elevators are achieved.
Patent Information
- Application Number
- CN202422595911.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The existing elevators are not repaired and maintained in place, the rescue is not timely during the failure, and the supervision department cannot be notified in time when the information is changed, resulting in elevator safety hazards and low maintenance efficiency.
Design an elevator DTU device, including a DTU circuit board and an antenna, set up a controller, a wireless communication unit, an ID unit, a data sampling unit, an isolation control unit and a status monitoring and indication unit, and monitor the elevator operation data in real time through wireless communication to realize the safety visual control of elevators, and ensure seamless interconnection of data information with maintenance personnel.
Real-time monitoring of the operating status of the elevator and timely detection of faults, improve the efficiency of fault rescue, ensure the safe operation of the elevator, and improve maintenance efficiency.
Smart Images
Figure CN223213578U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of elevators, in particular to an elevator DTU device. Background Art
[0002] With the rapid development of urbanization, the number of elevators has increased, but some prominent problems in elevator operation have gradually emerged. 1. Inadequate maintenance leads to frequent elevator malfunctions; 2. Rescue is not provided in a timely manner when an elevator accident or malfunction occurs; 3. Failure to promptly notify regulatory authorities when changes occur in the use, installation, or maintenance unit information. Currently, the most commonly used method for elevator use is five-way intercom, especially for older elevators, which can only report faults through five-way intercom. When an elevator malfunctions, the five-way intercom can promptly contact the on-duty personnel via intercom, and then notify maintenance personnel to come and deal with the problem.
[0003] In the event of an elevator malfunction or entrapment, a five-way intercom system is used to contact the on-duty personnel, who then contact elevator maintenance personnel for troubleshooting. This means that in the event of a malfunction or even entrapment, the only immediate contact is the on-duty personnel. However, these personnel are simply the property management staff within the residential complex and generally lack the expertise and skills required for elevator maintenance and rescue operations, forcing them to contact maintenance personnel. However, on-duty personnel can only describe the malfunction symptoms, preventing maintenance personnel from immediately understanding the fault type. Only after arriving on-site can they determine the fault type and make a corrective action. Some newer residential elevators have monitoring capabilities that can detect both the elevator's operating status and the type of malfunction in real time. However, this still requires monitoring personnel to understand the fault information before notifying maintenance personnel. Therefore, neither of these approaches currently provides timely and efficient service, and is particularly delayed in critical situations. Summary of the Invention
[0004] In order to solve the problems existing in the background technology, the utility model proposes an elevator DTU device.
[0005] An elevator DTU device includes an antenna and a DTU circuit board. The DTU circuit board is provided with a controller, a wireless communication unit, an ID unit, a data sampling unit, an isolation control unit, and a status monitoring indication unit. The input end of the data sampling unit is connected to the main control board of the elevator body, the output end of the data sampling unit is connected to the controller via the isolation control unit, the ID unit and the status monitoring indication unit are respectively connected to the controller, and the controller is connected to the antenna via the wireless communication unit.
[0006] Based on the above, the data sampling unit includes a sampling interface P3, which is used to be plugged into the main control board of the elevator body. The pins of the sampling interface P3 are respectively used to connect to the power supply and the isolation control unit.
[0007] Based on the above, the isolation control unit includes a resistor R35, a resistor R36, a resistor R37, a resistor R26, a MOS transistor Q5, and a MOS transistor Q6. The drain of the MOS transistor Q6 is connected to the data sending end of the sampling interface P3 and is connected to the power supply through the resistor R36. The source of the MOS transistor Q6 is connected to the controller, and the gate of the MOS transistor Q6 is connected to the source of the MOS transistor Q6 through the resistor R37. The drain of the MOS transistor Q5 is connected to the data receiving end of the sampling interface P3 and is connected to the power supply through the resistor R26. The source of the MOS transistor Q5 is connected to the controller, and the gate of the MOS transistor Q5 is connected to the source of the MOS transistor Q5 through the resistor R35.
[0008] Based on the above, the status monitoring and indicating unit includes a counter U4, a transistor Q2, a transistor Q4, a MOS transistor Q1 and a light-emitting diode NET. The model of the counter U4 is CD4060B. Pin 3 of the counter U4 is grounded through a resistor R11 and connected to the gate of the MOS transistor Q1 through a resistor R8. The drain of the MOS transistor Q1 is connected to the power supply and the source is connected to the controller. The gate of the MOS transistor Q1 is also connected to the collector of the transistor Q2, the emitter of the transistor Q2 is grounded, and the base of the transistor Q2 is connected to the controller through a resistor R7; pin 12 of the counter U4 is grounded through a resistor R14, the emitter of the transistor Q4 is grounded, the base of the transistor Q4 is connected to the controller through a resistor R20, the collector of the transistor Q4 is connected to the power supply through a resistor R15 and the light-emitting diode NET, and the collector of the transistor Q4 is also grounded through a capacitor C8 and a resistor R14.
[0009] Based on the above, the ID unit includes a SIM card holder, and the SIM card holder is connected to the controller.
[0010] Based on the above, a backup interface unit is included, the backup interface unit includes a USB interface, and the USB interface is connected to the controller.
[0011] Based on the above, an update unit is included, which includes an update interface BOOT. Pin 1 of the update interface BOOT is grounded through a capacitor C12 and connected to the controller through a resistor R31. Pin 2 of the update interface BOOT is connected to the controller.
[0012] Based on the above, a controller status indication circuit is included, in which the base of the transistor Q3 is connected to the controller, the emitter of the transistor Q3 is grounded, and the collector of the transistor Q3 is connected to the power supply through the resistor R19 and the light-emitting diode ACT in sequence.
[0013] Based on the above, the controller and wireless communication unit are respectively the control communication chip U2A, model EC200U-CE.
[0014] Based on the above, connection through holes are provided on the DUT circuit board.
[0015] The present invention has substantial features and advancements over the prior art. Specifically, by providing an additional DTU circuit board and antenna, the present invention facilitates installation in existing old elevators. Maintenance personnel can then monitor elevator operating data in real time, enabling visual control of elevator timeliness and safety. The monitoring data information is seamlessly interconnected with maintenance personnel and elevator passengers, ensuring the safe operation of the elevator while greatly improving the efficiency of fault detection and rescue maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the circuit structure of the controller and wireless communication unit of the utility model.
[0017] Figure 2 It is a schematic diagram of the circuit structure of the ID unit of the utility model.
[0018] Figure 3 It is a circuit structure diagram of the data sampling unit and the isolation control unit of the utility model.
[0019] Figure 4 It is a schematic diagram of the circuit structure of the status monitoring indicating unit of the utility model.
[0020] Figure 5 It is a schematic diagram of the circuit structure of the standby interface unit and the update unit of the utility model.
[0021] Figure 6 It is a circuit structure diagram of the power supply circuit of the utility model. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0023] An elevator DTU device includes an antenna and a DTU circuit board. The DTU circuit board is provided with a controller, a wireless communication unit, an ID unit, a data sampling unit, an isolation control unit, and a status monitoring indication unit. The input end of the data sampling unit is connected to the main control board of the elevator body, the output end of the data sampling unit is connected to the controller via the isolation control unit, the ID unit and the status monitoring indication unit are respectively connected to the controller, and the controller is connected to the antenna via the wireless communication unit.
[0024] In reality, the DTU circuit board is provided with connection through-holes for fixing it to the main control board in the elevator or near the main control board by means of bolts or cable ties, so as to facilitate the installation and modification of existing old elevators. When in use, after connecting the data sampling unit to the data interface of the main control board of the elevator body and fixing the DTU circuit board, the operation data and other information of the elevator can be received through the data sampling unit. The controller sends the received operation data and other information to the server or communication terminal through the wireless communication unit and antenna, so that maintenance personnel can monitor or receive the operation data information in real time. The status monitoring indication unit is used to monitor and record the working information of the controller and send the monitoring data together with the operation monitoring data. The ID unit is used to configure a unique ID for each DTU circuit board, so as to facilitate the corresponding recording and storage of the unique identification information of the elevator.
[0025] Specifically, such as Figure 1 As shown, the controller and wireless communication unit are respectively the control communication chip U2A, model EC200U-CE. The controller status indication circuit is an indicator light circuit. The base of the transistor Q3 in the controller status indication circuit is connected to the controller, the emitter of the transistor Q3 is grounded, and the collector of the transistor Q3 is connected to the power supply through the resistor R19 and the light-emitting diode ACT in turn. When the controller is working, the transistor Q3 is controlled to be turned on, thereby controlling the light-emitting diode ACT to light up, thereby indicating the working status of the controller. The 49th pin of the control communication chip U2A is connected to the antenna for wireless communication. Figure 2 As shown, the ID unit includes a SIM card holder, which is connected to the controller and is used to insert a SIM card, thereby uniquely marking the DTU circuit board and its corresponding elevator, making it convenient to record and store data.
[0026] like Figure 3As shown, the data sampling unit includes a sampling interface P3, which is used to plug into the main control board of the elevator body. The pins of the sampling interface P3 are respectively used to connect to the power supply and the isolation control unit, thereby directly reading the operating data, fault information, etc. of the elevator main control board, or sending required data to the elevator main control board. The isolation control unit includes resistors R35, R36, R37, R26, MOS transistors Q5 and Q6. The drain of MOS transistor Q6 is connected to the data sending end of the sampling interface P3 and connected to the power supply through resistor R36. The source of MOS transistor Q6 is connected to the controller, and the gate of MOS transistor Q6 is connected to the source of MOS transistor Q6 through resistor R37. The drain of MOS transistor Q5 is connected to the data receiving end of the sampling interface P3 and connected to the power supply through resistor R26. The source of MOS transistor Q5 is connected to the controller, and the gate of MOS transistor Q5 is connected to the source of MOS transistor Q5 through resistor R35. The controller and the elevator main control board are isolated by MOS tubes. The use of N-channel field-effect tubes can play the role of signal isolation, buffering, input / output characteristic matching, improving signal quality and reducing noise.
[0027] like Figure 4As shown, the status monitoring and indicating unit includes a counter U4, a transistor Q2, a transistor Q4, a MOS transistor Q1 and a light-emitting diode NET. The model of the counter U4 is CD4060B. Pin 3 of the counter U4 is grounded through a resistor R11 and connected to the gate of the MOS transistor Q1 through a resistor R8. The drain of the MOS transistor Q1 is connected to the power supply and the source is connected to the controller. The gate of the MOS transistor Q1 is also connected to the collector of the transistor Q2. The emitter of the transistor Q2 is grounded, and the base of the transistor Q2 is connected to the controller through a resistor R7. Pin 12 of the counter U4 is grounded through a resistor R14, the emitter of the transistor Q4 is grounded, and the base of the transistor Q4 is connected to the controller through a resistor R20. The collector of the transistor Q4 is connected to the power supply through a resistor R15 and the light-emitting diode NET. The collector of the transistor Q4 is also grounded through a capacitor C8 and a resistor R14. Before power is applied, the control communication chip U2A has no output level, transistors Q2 and Q4 are both off, counter U4 has no output level, MOS transistor Q1 is off, and control communication chip U2A has no power. After power is applied, counter U4 is connected to the 3.8V power supply. When it outputs a high level, MOS transistor Q1 turns on, connecting control communication chip U2A to power supply VCC and operating. Simultaneously, the control communication chip U2A outputs a high level, turning on transistor Q4, thereby illuminating LED NET, indicating that counter U4 is operating normally. During normal operation, U2A periodically transmits the NET_STATUS signal, resetting U4's binary serial counter and maintaining normal operation. If the SIM card cannot be detected within a certain period of time or wireless network communication fails, U2A stops transmitting the NET_STATUS signal. When U4 reaches a predetermined count, it turns off Q1, resets U2A, and reinitializes the DTU. This ensures that the DTU can resume normal operation in the event of an unexpected malfunction or wireless communication failure.
[0028] In reality, the DTU circuit board is also equipped with a spare interface unit and an update unit, such as Figure 5 As shown, the backup interface unit includes a USB interface connected to the controller for redundant interface configuration. The update unit includes a BOOT update interface. Pin 1 of the BOOT update interface is grounded via capacitor C12 and connected to the controller via resistor R31. Pin 2 of the BOOT update interface is connected to the controller. The update interface is used to connect an external update device when the DTU circuit board needs to be updated.
[0029] In practice, the DTU circuit board is also equipped with a power supply circuit, such as Figure 6As shown, port P4 is used to plug into the power interface on the elevator main control board to connect to the power supply. The power conversion chip U3 and the power conversion chip U6 are respectively used to convert the power to provide appropriate voltages for various parts of the DTU circuit board. F1 is a self-recovery insurance used to protect the DTU circuit board from overcurrent. TVS1 is a diode for voltage transient suppression, model SMBJ28CA.
[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. An elevator DTU device, characterized by: It includes an antenna and a DTU circuit board. The DTU circuit board is provided with a controller, a wireless communication unit, an ID unit, a data sampling unit, an isolation control unit and a status monitoring indication unit. The input end of the data sampling unit is connected to the main control board of the elevator body, and the output end of the data sampling unit is connected to the controller through the isolation control unit. The ID unit and the status monitoring indication unit are respectively connected to the controller, and the controller is connected to the antenna through the wireless communication unit.
2. The elevator DTU device according to claim 1, characterized in that: The data sampling unit includes a sampling interface P3, which is used to be plugged into the main control board of the elevator body. The pins of the sampling interface P3 are respectively used to connect to the power supply and the isolation control unit.
3. The elevator DTU device according to claim 2, characterized in that: The isolation control unit includes a resistor R35, a resistor R36, a resistor R37, a resistor R26, a MOS transistor Q5, and a MOS transistor Q6. The drain of the MOS transistor Q6 is connected to the data sending end of the sampling interface P3 and is connected to the power supply through the resistor R36. The source of the MOS transistor Q6 is connected to the controller, and the gate of the MOS transistor Q6 is connected to the source of the MOS transistor Q6 through the resistor R37. The drain of the MOS transistor Q5 is connected to the data receiving end of the sampling interface P3 and is connected to the power supply through the resistor R26. The source of the MOS transistor Q5 is connected to the controller, and the gate of the MOS transistor Q5 is connected to the source of the MOS transistor Q5 through the resistor R35.
4. The elevator DTU device according to claim 1, characterized in that: The state monitoring indicating unit includes a counter U4, a transistor Q2, a transistor Q4, a MOS transistor Q1 and a light-emitting diode NET. The model of the counter U4 is CD4060B. Pin 3 of the counter U4 is grounded through a resistor R11 and connected to the gate of the MOS transistor Q1 through a resistor R8. The drain of the MOS transistor Q1 is connected to the power supply and the source is connected to the controller. The gate of the MOS transistor Q1 is also connected to the collector of the transistor Q2. The emitter of the transistor Q2 is grounded, and the base of the transistor Q2 is connected to the controller through a resistor R7. Pin 12 of the counter U4 is grounded through a resistor R14, the emitter of the transistor Q4 is grounded, the base of the transistor Q4 is connected to the controller through a resistor R20, the collector of the transistor Q4 is connected to the power supply through a resistor R15 and the light-emitting diode NET, and the collector of the transistor Q4 is also grounded through a capacitor C8 and a resistor R14.
5. The elevator DTU device according to claim 1, characterized in that: The ID unit includes a SIM card holder, and the SIM card holder is connected to the controller.
6. The elevator DTU device according to claim 1, characterized in that: The utility model comprises a spare interface unit, wherein the spare interface unit comprises a USB interface, and the USB interface is connected to the controller.
7. The elevator DTU device according to claim 1, characterized in that: The update unit includes an update interface BOOT, wherein pin 1 of the update interface BOOT is grounded via a capacitor C12 and connected to a controller via a resistor R31, and pin 2 of the update interface BOOT is connected to the controller.
8. The elevator DTU device according to claim 1, characterized in that: The controller state indicating circuit includes a base of a transistor Q3 connected to the controller, an emitter of the transistor Q3 connected to the ground, and a collector of the transistor Q3 connected to a power supply via a resistor R19 and a light emitting diode ACT in sequence.
9. The elevator DTU device according to claim 1, characterized in that: The controller and wireless communication unit are respectively the control communication chip U2A, model EC200U-CE.
10. The elevator DTU device according to claim 1, characterized in that: The DUT circuit board is provided with connection through holes.