Recognition device for handle of dental operating machine
By incorporating a voltage divider circuit and a processor to identify the handle specifications in the dental operating machine, the problem of handle insertion recognition is solved, ensuring safe operation of the equipment and improving the convenience and safety of the surgical process.
Patent Information
- Application Number
- CN202422583559.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-24
AI Technical Summary
Existing dental operating machines cannot recognize whether a handle is inserted or whether the correct size handle is inserted, leading to equipment malfunction or damage and affecting the surgical process.
Design a dental operating machine handle recognition device. By setting a voltage divider circuit between the handle and the main unit, the main unit processor collects voltage signals, identifies the handle's specifications and model, and prompts the user through a display screen and speaker to prevent incorrect insertion.
It automatically identifies whether the handle is correctly connected, protecting the equipment from being burned out and improving the safety and convenience of the surgical procedure.
Smart Images
Figure CN223501565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental surgical equipment, and in particular to a dental surgical machine handle recognition device. Background Technology
[0002] Currently, dental surgical machines on the market typically consist of a handpiece and a main unit. The handpiece is usually connected to the main unit via a cable, and the connection method is a quick-connect plug for direct plugging and unplugging. The purpose of this is that after the surgery, the handpiece and cable need to be separated from the main unit to complete the disinfection and sterilization of the cable and handpiece.
[0003] As a component that can be inserted or removed at any time, the following situations often occur with the controller: the user forgets to reconnect it after the last removal, or there are many cables in the user's environment, and the user is unsure whether the controller cable is already inserted; the controller cable is broken, but the user is unaware of it; the user uses controllers of various specifications, the hardware plug interfaces are compatible, but the actual control is incompatible, and inserting the wrong specification will cause the device to malfunction.
[0004] Existing dental operating machines cannot identify whether a handle is inserted or whether the correct size handle is inserted during the operation, which can affect the operation process; and when an incorrect size handle is inserted, it may burn out the main unit or the handle, causing equipment damage. Utility Model Content
[0005] Therefore, the purpose of this utility model is to provide a dental operating machine handle recognition device.
[0006] A dental operating machine handle recognition device includes a main unit and a handle. The main unit is provided with a main unit socket and a main unit processor. The handle is connected to a cable with a handle plug. The handle plug has at least three contact pins, two of which are connected to a first resistor. The main unit socket has at least three detection pins, two of which are connected to a second resistor. When the handle plug is inserted into the main unit socket, the contact pins and the detection pins make contact, and one of the contact pins connected to the first resistor makes contact with the detection pin not connected to the second resistor. The main unit processor is connected to the detection pins and is used to sample the voltage signal on the detection pins.
[0007] The dental operating machine handle recognition device of this utility model has a first resistor and a second resistor that divide the voltage when the handle plug is inserted into the main unit socket. The voltage signals collected by the main unit processor are different, and the main unit can automatically identify whether it is correctly connected to the handle of the correct specification.
[0008] Furthermore, the host is connected to a power supply that provides power to the host; the handle is inserted into the host through the handle plug, and the host provides power to the handle.
[0009] Furthermore, one of the detection probes that is not connected to the second resistor is connected to the ground wire.
[0010] Furthermore, the resistance values of the first resistor and the second resistor are set in a certain ratio.
[0011] Furthermore, the resistance ratios between different first and second resistors increase arithmetic progressions. Different resistor values result in different voltage division effects, allowing the host processor to accurately identify the handle's specifications and model, switch operating modes, and better execute user commands.
[0012] Furthermore, the host processor is equipped with an ADC sampling pin, which is connected to the detection pin and is used to convert the acquired analog voltage signal into a digital signal.
[0013] Furthermore, the host is also equipped with a display screen, which is connected to the host processor and is used to display different content based on the information from the host processor.
[0014] Furthermore, the host computer is also equipped with a speaker, which is connected to the host processor and is used to emit different sounds according to the information from the host processor.
[0015] Furthermore, the host unit also includes a startup circuit; the host processor is connected to the startup circuit and is used to control the startup circuit's switch. When the host processor detects that a handle of incorrect specifications is not connected, it disables the startup circuit to prevent the internal circuitry of the host unit from burning out and damaging the host unit and the handle.
[0016] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the handle plug and the main unit socket in this utility model;
[0018] Figure 2 This is an equivalent schematic diagram of the voltage divider circuit when the handle plug is inserted into the host socket in this utility model. Detailed Implementation
[0019] This utility model discloses a dental operating machine handle recognition device, comprising a main unit and a handle. The main unit includes a main unit processor and a main unit socket 11. A detection pin 12 is disposed within the main unit socket 11, and the main unit processor is connected to the detection pin 12. The handle is connected to a cable with a handle plug 21. The handle plug 21 has a contact pin 22. When the handle plug 21 is inserted into the main unit socket 11, the contact pin 22 contacts the detection pin 12, and the detection pin 12 transmits a signal to the main unit processor. The main unit is connected to a power supply unit to provide a stable power supply voltage. The handle is inserted into the main unit through the handle plug 21, and the main unit supplies power to the handle.
[0020] In this embodiment, there are three detection pins 12 and three contact pins 22, one of which is a ground detection pin 121 connected to the ground wire. The handle plug 21 also includes a first resistor 23, which is connected to two of the contact pins 22 of the handle plug 21. The host socket 11 includes a second resistor 13, which is connected to the other two detection pins 12 besides the ground detection pin 121. When the handle plug 21 is inserted into the host socket 11, one of the contact pins 22 connected to the first resistor 23 makes contact with the ground detection pin 121, and the first resistor 23 in the handle plug 21 and the second resistor 13 in the host socket 11 complete voltage division. The host processor is provided with an ADC sampling pin 14, which is connected to the detection pin 12, identifies the voltage after voltage division, converts the analog signal into a digital signal, and thus determines the resistance value of the handle.
[0021] The host processor reads the AD values sampled by the ADC sampling pin 14 in real time and performs debouncing processing. The debouncing mechanism involves sampling data 10 times within 100ms, removing the maximum and minimum values from these 10 sets of data, and averaging the remaining data to obtain the average value as the currently acquired valid value. The formula for calculating the read ADC value is as follows: Where x is the currently acquired AD value, which is the current voltage divider value; n is the number of bits in the processor's ADC unit. In this embodiment, a processor with a 12-bit ADC unit is used, and 12-bit ADC has a value of 4096; Vref is the reference voltage of the processor's ADC unit, which is the power supply voltage of the processor in this system, and its value is V0. To prevent some erroneous data from affecting the host processor's judgment during the data sampling process, and to prevent false triggering, a judgment threshold is added when judging the dataset. The calibration threshold range is set according to the upper and lower limits of the theoretical data value by 10%.
[0022] By setting different resistance values for the first resistor 23 in handles of different specifications, when the handle plug 21 is inserted into the host processor, the host processor recognizes the different voltages after voltage division and identifies the different handle resistance values, thereby determining the handle's specifications and model. In this embodiment, the resistance values of the first resistor 23 and the second resistor 13 are set in a certain ratio, the resistance value of the second resistor 13 remains unchanged, and the resistance value of the first resistor 23 of different handle specifications changes proportionally, which facilitates identification.
[0023] The host is also equipped with a display screen, which is connected to the host processor. When the host processor recognizes the specifications and model of the handle, it displays them on the display screen for easy viewing and confirmation during use.
[0024] The host is also equipped with a speaker, which is connected to the host processor. When the host processor recognizes the specifications and model of the handle, the speaker emits different sounds according to the different specifications and models of the handle, so as to facilitate user confirmation.
[0025] The host is also equipped with a start-up circuit and other functional circuits. The host processor is connected to the start-up circuit. When the host processor analyzes and determines that the handle is not inserted or the inserted handle does not match the required handle, it disables the start-up circuit and other functional circuits to prevent the internal circuits of the host from burning out and damaging the host and the handle.
[0026] When the handle plug 21 is not inserted into the host socket 11, the first resistor 23 inside the host is not divided, and the voltage is V0. After reading the voltage, the host processor recognizes that no handle is inserted. At this time, it reminds the user that no handle is connected through the display screen or speaker, and disables the host's startup circuit. When the wrong handle plug 21 is inserted into the host socket 11, the first resistor 23 and the second resistor 13 divide the voltage, and the voltage read by the host processor is V1, which does not correspond to the handle required by the host. At this time, it reminds the user that the wrong handle is connected through the display screen or speaker, and disables the internal circuit to protect the host and handle from being burned out. When the correct handle plug 21 is inserted into the host socket 11, the voltage read by the host processor is V2, which is the same as the handle that the host needs to control. At this time, the device is ready, and the resistance value of the handle is identified based on the read voltage, thereby determining the handle's specifications and model. The operating mode of the device is switched according to the handle's specifications and model, so as to correctly execute the user's commands.
[0027] Preferably, the host is provided with multiple host sockets 11. When multiple handles with different resistance values required by the host are inserted, they are tested separately. When the ratio of the first resistor 23 to the second resistor 13 is 1±10%, the host processor reads a voltage of V2, which indicates that the handle is model number one; when the ratio of the first resistor 23 to the second resistor 13 is 2±10%, the host processor reads a voltage of V3, which indicates that the handle is model number two. Both are handles required by the host. At this time, the host can control either handle number one or handle number two. The user is then notified via the display screen and speaker that multiple handles have been connected, and the control program is executed according to the handle's specifications.
[0028] This invention relates to a dental operating machine handle recognition device. A voltage divider circuit is incorporated at the handle's connector to the main unit. When handles with different resistance values are inserted into the main unit, the unit automatically identifies whether a correct handle of the correct specification is being connected based on the voltage difference. If the handle is correctly connected, the machine is ready to operate. If not, the system prompts the user via interface or sound to insert the correct handle, and the internal circuitry remains inactive to protect the main unit and handle from damage. This automatic recognition scheme not only helps users confirm whether a handle is connected but also identifies whether the connected handle is correct, achieving the goals of protecting the equipment and automatically switching operating modes. This makes the device more convenient and safer to use.
[0029] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.
Claims
1. A dental operating machine handle recognition device, characterized in that: The device includes a main unit and a controller. The main unit has a main unit socket and a main unit processor. The controller is connected to a cable with a controller plug. The controller plug has at least three contact pins, with a first resistor connected between two of the contact pins. The main unit socket has at least three detection pins, with a second resistor connected between two of the detection pins. When the controller plug is inserted into the main unit socket, the contact pins and the detection pins make contact, and one of the contact pins connected to the first resistor makes contact with the detection pin that is not connected to the second resistor. The main unit processor is connected to the detection pins and is used to sample the voltage signal on the detection pins.
2. The dental operating machine handle recognition device according to claim 1, characterized in that: The host is connected to a power supply that provides power to the host; the handle is inserted into the host through the handle plug, and the host provides power to the handle.
3. The dental operating machine handle recognition device according to claim 2, characterized in that: One of the detection probes that is not connected to the second resistor is connected to the ground wire.
4. The dental operating machine handle recognition device according to claim 1, characterized in that: The resistance values of the first resistor and the second resistor are set in a certain ratio.
5. The dental operating machine handle recognition device according to claim 4, characterized in that: The ratios of the resistance values of the first resistor and the second resistor increase arithmetically.
6. The dental operating machine handle recognition device according to claim 4, characterized in that: The host processor is equipped with an ADC sampling pin, which is connected to the detection probe and is used to convert the acquired analog voltage signal into a digital signal.
7. The dental operating machine handle recognition device according to claim 4, characterized in that: The host computer is also equipped with a display screen, which is connected to the host processor and is used to display different content based on the information from the host processor.
8. The dental operating machine handle recognition device according to claim 4, characterized in that: The host computer is also equipped with a speaker, which is connected to the host processor and is used to emit different sounds according to the information from the host processor.
9. The dental operating machine handle recognition device according to claim 1, characterized in that: The host also includes a startup circuit; the host processor is connected to the startup circuit and is used to control the startup circuit's switching.