A race timer

Abstract

The application provides a competition timer, comprising a display module, a key module and a control module; the display module comprises a red display unit for displaying red competition time and a blue display unit for displaying blue competition time; the key module comprises a setting key, an add key, a minus key, a red adjusting key, a blue adjusting key, a shift reset key, a pause key, a start key, a red independent key and a blue independent key; the control module is electrically connected with the display module, the key module, a line-crossing detection interface, a power module and a voice module respectively; the application can ensure the timing accuracy, the operation convenience, the line-crossing warning timeliness of the curling competition.

Description

Technical Field

[0001] This invention relates to the technical field of timers, and more specifically, to a competition timer. Background Technology

[0002] Curling is a fast-paced, highly competitive sport that demands real-time refereeing. During the game, the red and blue players glide at high speed on the ice. Referees not only need to keep track of the total game time but also need to record and adjust the individual times for the red and blue teams. When there are pauses, disputes, time penalty corrections, or cross-line penalties, the referee needs to quickly pause the timer, adjust the time for one team individually, end the end of the end and reset the timer, and issue a warning for any cross-line violation.

[0003] However, most existing curling game timing devices use ordinary electronic timers or stopwatches. Their display modules usually only display a single time and cannot display the red team's game time and the blue team's game time separately through red team display units and blue team display units. Their button modules are also mostly simple start, pause, and reset buttons, without setting independent buttons for the red team and the blue team. They cannot implement the interlocking logic that triggers one side's button and the other side counts down, and the triggered side's button is locked, which can easily cause both sides to start timing at the same time or trigger the wrong time.

[0004] Existing equipment typically cannot enter a separate adjustment mode after a pause by long-pressing the red or blue adjustment button, and thus cannot use the plus, minus, and shift / reset buttons to correct the corresponding player's time. Furthermore, it lacks the control logic to quickly end the game and reset both players' times by long-pressing the shift / reset button after the end of the game. In addition, the cross-line detection interface in curling is usually independent of the timer; the cross-line alarm signal cannot be directly sent to the control module and linked to the voice module to announce the cross-line warning, making it easy for referees to miss calls when focusing on timing and the progress of the game.

[0005] It is evident that existing curling game timers suffer from problems such as non-independent display, lack of button interlocking, inconvenient pause adjustment, low reset efficiency, and separation of over-line alarm and timing control, making it difficult to meet the requirements of curling games for timing accuracy, ease of operation, and timely over-line warnings. Summary of the Invention

[0006] The technical problem to be solved by this invention is how to ensure the accuracy of timing, ease of operation and timeliness of cross-line warnings in curling matches. In order to overcome the defects of the prior art (or related technologies) mentioned above, this invention provides a match timer.

[0007] This invention provides a competition timer, comprising: The display module includes a red team display unit for displaying the red team's match time and a blue team display unit for displaying the blue team's match time. The button module includes a setting button, an increase button, a decrease button, a red square adjustment button, a blue square adjustment button, a shift reset button, a pause button, a start button, a red square independent button, and a blue square independent button; The control module is electrically connected to the display module, button module, over-line detection interface, power module, and voice module, respectively. The control module is configured as follows: In response to a short press of the start button, the game is started and the independent buttons for the red and blue sides are unlocked; After the match starts, in response to the triggering of one of the red or blue independent buttons, the other independent button is unlocked, the countdown of the other side's match time is started, and the triggered independent button is locked until the other independent button is triggered, at which point the reverse execution is performed. In response to a short press of the pause button, the game timer is paused, and the middle dividing point in the display module is controlled to flash. In pause mode, a long press of the red or blue adjustment button will enter the individual time adjustment mode for the red or blue side. The match time for the corresponding side can be adjusted by using the plus, minus, and shift / reset buttons. A short press of the red or blue adjustment button will exit the individual time adjustment mode and save the settings. In response to a long press of the shift reset button, the current game ends and the red team's game time and the blue team's game time are reset to the set game time; In response to the over-line alarm signal received by the over-line detection interface, the voice module is controlled to broadcast an over-line warning.

[0008] Compared with the prior art, the competition timer of the present invention has the following advantages: In this invention, the red and blue display units respectively display the match time for both sides, facilitating intuitive observation by referees and participants. Through the interlocking logic of the independent red and blue buttons, only the side other than the triggered side starts the countdown after the match begins, and the triggered side's button is locked. This allows for alternating timing between the two sides, preventing timing chaos caused by simultaneous timing or accidental triggering, thus improving the fairness of the match. A short press of the pause button pauses the timer and causes the middle dividing point to flash, facilitating referee judgment and operation during the pause. During the pause, a long press of either the red or blue adjustment button enters a separate adjustment mode, allowing adjustment of a particular side's time using the plus, minus, and shift / reset buttons to meet adjustment needs in case of disputes or anomalies during the match. A long press of the shift / reset button ends the current match and resets both sides' times, facilitating continuous multi-round matches. Upon receiving a cross-line alarm signal, the cross-line detection interface controls the voice module to broadcast a cross-line warning, giving the match timer not only a timing function but also a cross-line monitoring and prompting function, enhancing the safety and standardization of the match.

[0009] In one possible implementation, the control module is further configured to: Upon powering on or after the current match ends, the long press of the setting key enters the match time setting mode, controlling the last digit of the display unit in the red team and the display unit in the blue team to flash. The set match time is adjusted in response to the plus or minus key; In response to a short press of the shift reset key, the second units digit, second tens digit, minute units digit, and minute tens digit are selected cyclically. In response to a short press of the setting key, the system exits the match time setting mode and saves the set match time so that the saved match time is automatically loaded upon the next power-on.

[0010] Compared with existing technologies, the above-mentioned technical solution allows users to enter the match time setting mode by long-pressing the setting key immediately upon powering on or after the end of a match. Users can then cycle through and adjust different digits (minutes, seconds, etc.) using the flashing last digit, plus, minus, and shift / reset keys, making match time setting intuitive, precise, and easy to operate. After setting, a short press of the setting key exits and saves the settings, automatically loading the saved match time upon the next power-on, avoiding repeated settings each time and improving efficiency. Furthermore, since match time settings can only be made immediately upon powering on or after the end of a match, it prevents accidental modification of the match time during the game, ensuring the seriousness and fairness of match timing.

[0011] In one possible implementation, the control module is further configured to: In the match time setting mode and the time individual adjustment mode, a short press of the shift reset button is used for shift selection, a long press of the shift reset button is used to end the current match, and a long press of the pause button and the start button are both ineffective.

[0012] Compared with existing technologies, the above technical solution further clarifies that in the match time setting mode and the time-only adjustment mode, a short press of the shift reset button is used for shift selection, and a long press is used to end the current match. Long presses of the pause button and the start button are ineffective. This forms a clear short-press and long-press operation logic, reducing misoperation. The dual-function multiplexing of the shift reset button can also reduce the number of buttons on the panel, simplify the structure, reduce hardware costs and operational complexity, and the ineffective long press of the pause button and the start button can prevent abnormal changes in the match status due to accidental long presses.

[0013] In one possible implementation, the voice module is configured as follows: When entering the match time setting mode, a first prompt word indicating the setting of the match time is broadcast at a first volume; when starting the match, a second prompt word indicating the start of the match is broadcast at a second volume; when pausing the match, a third prompt word indicating the pause of the match is broadcast at a second volume; when entering the red or blue side time adjustment mode, a fourth prompt word indicating the red side time adjustment or the blue side time adjustment is broadcast at a first volume; and when ending the current game, a fifth prompt word indicating the end of the current game is broadcast at a second volume, wherein the second volume is greater than the first volume.

[0014] Compared with existing technologies, the above-mentioned technical solution can use different volumes to broadcast different prompts in different states through the voice module. The first volume, which is relatively soft, is used when entering the game time setting mode or the red or blue side time adjustment mode; the second volume, which is relatively loud, is used when starting the game, pausing the game, or ending the game. In this way, the operation state can be distinguished by the volume, and the setting and adjustment will not easily disturb the surrounding environment. Important nodes such as start, pause, and end can attract the attention of referees and participants, improving the human-computer interaction effect and the reliability of the game prompts.

[0015] In one possible implementation, the control module is further configured to: After the game is paused, a short press of the start button will resume the game timer and re-unlock the red and blue independent buttons. During the game timer or in a paused state, a long press of the shift reset button will end the game.

[0016] Compared with existing technologies, the above-mentioned technical solution can prevent accidental timing due to the independent buttons remaining active during the pause by requiring a short press of the start button after a pause to resume the game timer and re-unlock the independent buttons for both the red and blue sides. This ensures that the button status of both sides is clear when the game resumes. During the game timer or in a pause, a long press of the shift reset button can end the game, allowing the referee to flexibly end the game according to the actual situation, improving operational convenience and game control.

[0017] In one possible implementation, the control module is further configured to: When there are 3 minutes remaining in the match time for either the red or blue team, the voice module is controlled to broadcast the sixth prompt at a second volume, indicating that the red team should pay attention to the match time or the blue team should pay attention to the match time. When the match time for either the red or blue team is 0, the voice module is controlled to broadcast the seventh prompt at a second volume, indicating that the red team has exceeded the match time or the blue team has exceeded the match time. When the crossing alarm signal is received, the voice module is controlled to broadcast the eighth prompt at a second volume, indicating a crossing warning.

[0018] Compared with existing technologies, the above-mentioned technical solutions can promptly remind participants at key time points in the competition to avoid exceeding the time limit due to not paying attention to the time; clearly announce the party that has exceeded the time limit when the time runs out to reduce disputes; and issue timely warnings when crossing the line to improve the safety of the competition and the effectiveness of rule enforcement.

[0019] In one possible implementation, the system further includes an alarm light and a horn connected to the control module; the alarm light is used to generate an alarm light signal when the line crossing alarm signal is received, and the horn serves as the output component of the voice module; the line crossing detection interface is used to connect to a line crossing signal sensor.

[0020] Compared with existing technologies, the above technical solution can form a dual alarm with sound and light, improving the visibility and reliability of the line crossing warning; at the same time, it is convenient to connect different line crossing detection sensors to expand the applicable scenarios of the timer.

[0021] In one possible implementation, the power module is provided with a TYPE-C power interface electrically connected to the control module; the display module includes a red screen and a blue screen, the red screen constituting the red square display unit and the blue screen constituting the blue square display unit; the button module is connected to the control module through a button interface, and the independent red square button and the independent blue square button are respectively connected to the control module through the red square button interface and the blue square button interface.

[0022] Compared with existing technologies, the above technical solutions facilitate modular assembly, repair and replacement, and improve production and maintenance efficiency.

[0023] In one possible implementation, the control module, the display module, the button module, the voice module, the line crossing detection interface, and the power module are all integrated on the same PCB board.

[0024] Compared with existing technologies, the above technical solutions enable the machine to have a compact structure and optimized size, reduce internal wiring, reduce assembly complexity, improve electrical connection reliability and anti-interference ability, and facilitate mass production and quality control. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a structural diagram of the PCB board of the present invention; Figure 3 This is a schematic diagram of the button module of the present invention. Detailed Implementation

[0026] First, those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] See Figures 1-3 This invention discloses a match timer, including a display module, a button module, a control module, a line-crossing detection interface, a power module, and a voice module. The display module includes a red team display unit for displaying the red team's match time and a blue team display unit for displaying the blue team's match time. The button module includes a setting button, an increment button, a decrement button, a red team adjustment button, a blue team adjustment button, a shift / reset button, a pause button, a start button, a red team independent button, and a blue team independent button. The control module is electrically connected to the display module, button module, line-crossing detection interface, power module, and voice module, and is configured as follows: In response to a short press of the start button, the game is started and the independent buttons for the red and blue sides are unlocked; After the match starts, in response to the triggering of one of the red or blue independent buttons, the other independent button is unlocked, the countdown of the other side's match time is started, and the triggered independent button is locked until the other independent button is triggered, at which point the reverse execution is performed. In response to a short press of the pause button, the game timer is paused, and the middle dividing point in the display module is controlled to flash. In pause mode, a long press of the red or blue adjustment button will enter the individual time adjustment mode for the red or blue side. The match time for the corresponding side can be adjusted by using the plus, minus, and shift / reset buttons. A short press of the red or blue adjustment button will exit the individual time adjustment mode and save the settings. In response to a long press of the shift reset button, the current game ends and the red team's game time and the blue team's game time are reset to the set game time; In response to the over-line alarm signal received by the over-line detection interface, the voice module is controlled to broadcast an over-line warning.

[0029] In this embodiment of the invention, the competition timer is mounted on the same PCB board, and the control module, display module, button module, voice module, line crossing detection interface, and power module are all integrated on the same PCB board. Figure 2As shown, the PCB board can be equipped with four corner mounting holes for fixing the game timer to the curling referee's table, timing table, or portable housing. The PCB board is also equipped with a red screen interface, a blue screen interface, an alarm light interface, a cross-line signal interface, a power interface, a speaker interface, a button interface, a red team button interface, and a blue team button interface.

[0030] In this embodiment of the invention, the red screen interface may include interfaces such as LOREDE1 and LOREDE2, used to connect the red screen constituting the red display unit; the blue screen interface may include interfaces such as LOBLUE1 and LOBLUE2, used to connect the blue screen constituting the blue display unit; the alarm light interface BAOJILED is used to connect the alarm light; the cross-line signal interface CROSSLINE is used to connect the cross-line signal sensor and receive the cross-line alarm signal; the power interface TYPE-C is used to connect the external power supply; the horn interface HORN is used to connect the horn; the button interface KEY is used to connect buttons such as the setting button, plus button, minus button, shift reset button, pause button, and start button; the red button interface REDKEY is used to connect the independent red button; and the blue button interface BLUEKEY is used to connect the independent blue button.

[0031] In this embodiment of the invention, the control module can be implemented using a microcontroller, single-chip microcomputer, or programmable logic controller, such as the STM32 series, STC series, or Holtek single-chip microcomputer, etc., which internally has a timer, GPIO interface, non-volatile memory, and communication interface; the display module can use an LED digital tube, LCD screen, or OLED screen, with red screen and blue screen respectively forming the red square display unit and blue square display unit; the voice module can use voice chips such as WT588F and SYN6288, and communicate with the control module through UART or a one-wire serial port; the power module can include a TYPE-C power interface, voltage regulator circuit, and power switch, used to convert external power into the working voltage required by the control module, display module, button module, voice module, and over-line detection interface.

[0032] In this embodiment of the invention, the control module can maintain multiple working states, including but not limited to: power off state, match time setting state, waiting to start state, match running state, paused state, red side time adjustment state, blue side time adjustment state, and end of game state. The control module distinguishes between short presses and long presses by detecting the duration of each button press in the button module. For example, the preset duration can be set to 1.5 seconds. A press duration of less than 1.5 seconds is determined as a short press, and a press duration of more than or equal to 1.5 seconds is determined as a long press. The button signals can undergo software debouncing processing of 20ms to 50ms to avoid accidental triggering. For the pause and start buttons, long presses are ineffective, and only short presses are effective. For the set button, red side adjustment button, blue side adjustment button, and shift reset button, short press and long press functions are respectively assigned according to the current state.

[0033] In this embodiment of the invention, after the device is powered on or after a game ends and the reset button is pressed, the control module is allowed to enter the game time setting mode. Specifically, by pressing and holding the set button, the voice module announces "Set game time" at a low volume, and the last digit in the red and blue display units begins to flash. At this time, the set game time can be adjusted using the plus and minus buttons, or by short-pressing the shift reset button to cycle through the units, tens, units, and tens digits of seconds, and the selected digit flashes. After setting, by short-pressing the set button, the control module exits the game time setting mode and saves the set game time to a non-volatile memory such as EEPROM or Flash. The next time the device is powered on, the control module automatically loads the set game time. If modification is needed, the above operation is repeated. The game time can only be modified after the device is powered on or after a game ends and the reset button is pressed; it cannot be modified during the game.

[0034] In this embodiment of the invention, after setting the match time, a short press of the start button initiates the match via the control module, and the voice module announces "Match Start" at a relatively loud volume. At this time, the independent buttons for the red and blue sides are unlocked and become valid when pressed. After the match starts, if the second player presses their independent button, the first player begins timing, and their time on the screen counts down in seconds. At this time, the second player's independent button becomes ineffective. When the first player presses their independent button, the second player begins timing, and their time on the screen counts down in seconds. This achieves interlocking control between the independent buttons for the red and blue sides, preventing both players from timing simultaneously or triggering the buttons accidentally.

[0035] In this embodiment of the invention, after the start of the match, the match timer can be paused at any time by shortly pressing the pause button; when paused, the control module controls the middle dividing point in the display module to start flashing, for example, at a frequency of 1Hz, and at the same time the voice module announces "match paused" at a loud volume; a long press of the pause button has no effect; after pausing, the start button must be shortly pressed again for the control module to resume the match timer and re-unlock the independent buttons for the red and blue sides, making the independent buttons for both sides effective again.

[0036] In this embodiment of the invention, during a paused match, pressing and holding the red or blue adjustment button allows entry into a separate time adjustment mode for the red or blue side. Specifically, when the red adjustment button is pressed and held, the voice module announces "Red time adjustment" at a low volume, and the time corresponding to the red side display unit begins to flash. When the blue adjustment button is pressed and held, the voice module announces "Blue time adjustment" at a low volume, and the time corresponding to the blue side display unit begins to flash. At this time, the match time for the corresponding side can be adjusted using the plus, minus, and shift / reset buttons. A short press of the shift / reset button cycles through the units, tens, units, and tens digits of the seconds, and the corresponding number on the screen flashes when selected. After adjustment, a short press of the red or blue adjustment button exits the separate time adjustment mode and saves the adjusted time. The long press of the red and blue adjustment buttons is only effective when the pause button is pressed after the match has started and the match is paused.

[0037] In this embodiment of the invention, during the match timing or when the match is paused, pressing and holding the shift reset button will end the current match. In response to the long press of the shift reset button, the control module controls the voice module to announce "The current match is over" at a louder volume. The timer automatically loads the set match time, and the screen displays the set match time. The shift reset button is a dual-function button: a short press activates the shift function, which is only effective in the match time setting mode and the red / blue team time adjustment mode; a long press activates the reset function, used to end the current match and reset the match time to its initial state.

[0038] In this embodiment of the invention, the voice module is configured to output different voice prompts according to the control of the control module. Specifically, when entering the match time setting mode, "Set match time" is announced at a first volume, with a relatively low volume; when starting the match, "Match start" is announced at a second volume, with a relatively high volume; when pausing the match, "Match paused" is announced at a second volume, with a relatively high volume; when entering the red or blue side time adjustment mode, "Red side time adjustment" or "Blue side time adjustment" is announced at a first volume, with a relatively low volume; when ending the current match, "This match ended" is announced at a second volume, with a relatively high volume. The second volume is greater than the first volume, so as to distinguish the setting adjustment state from important states such as the start, pause, and end of the match by the volume strength.

[0039] In this embodiment of the invention, when there are 3 minutes left in the game time for either the red or blue team, the control module controls the voice module to announce "Red team, please pay attention to the game time" or "Blue team, please pay attention to the game time" at a second volume; when the game time for either the red or blue team is 0, the control module controls the voice module to announce "Red team's game time expired" or "Blue team's game time expired" at a second volume. The above reminders can be used individually or in combination to improve the prompting effect during the timing process of curling games.

[0040] In this embodiment of the invention, the CROSSLINE interface is used to connect to the line crossing signal sensor. When the line crossing signal sensor detects a line crossing and outputs a line crossing alarm signal, the control module receives the line crossing alarm signal and controls the voice module to broadcast "Line crossing warning, line crossing warning" at a second volume. At the same time, the control module can control the alarm light to generate an alarm light signal. The alarm light is connected to the control module through the BAOJILED interface, and the speaker is connected to the control module through the HORN interface and serves as the output component of the voice module. Optionally, the control module performs de-jitter confirmation on the line crossing alarm signal. For example, it confirms the line crossing after continuously detecting a valid level of 100ms, and then triggers the voice broadcast and alarm light to avoid false alarms. The line crossing warning can be broadcast twice or more to attract the attention of the referees and participants.

[0041] In one specific usage example of this invention, the working process of the curling game timer is as follows: First, press the power switch to turn on the device. The screen displays the game set time. Press and hold the set button, and the voice will announce "Set game time" to enter the game time setting mode. The last digit of the numbers on the red and blue screens will flash. Use the plus, minus, and shift / reset buttons to set the game time. Press the set button briefly to exit and save. After setting, press the start button briefly, and the voice will announce "Game start". The independent buttons for both red and blue players will unlock. When the player who goes second presses their independent button, the player who goes first will start the countdown, and the player who goes second will lose their button. After the player who goes first presses their independent button, the player who goes second will start the countdown. During the match, a short press of the pause button will announce "Match paused" and the two dots in the middle will flash. At this time, a long press of the red or blue adjustment button will adjust the red or blue time respectively. A short press of the corresponding adjustment button will exit and save the settings. After pausing, a short press of the start button will resume the match. During the match timer or pause, a long press of the shift reset button will end the current game, with a voice announcement saying "This game is over." The timer will automatically load and display the set match time. If the line crossing detection interface receives a line crossing alarm signal, a voice announcement will say "Line crossing warning, line crossing warning," and the alarm light will illuminate simultaneously.

[0042] In the description of this invention, the references to "one embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A competition timer, characterized in that, include: The display module includes a red team display unit for displaying the red team's match time and a blue team display unit for displaying the blue team's match time. The button module includes a setting button, an increase button, a decrease button, a red square adjustment button, a blue square adjustment button, a shift reset button, a pause button, a start button, a red square independent button, and a blue square independent button; The control module is electrically connected to the display module, button module, over-line detection interface, power module, and voice module, respectively. The control module is configured as follows: In response to a short press of the start button, the game is started and the independent buttons for the red and blue sides are unlocked; After the match starts, in response to the triggering of one of the red or blue independent buttons, the other independent button is unlocked, the countdown of the other side's match time is started, and the triggered independent button is locked until the other independent button is triggered, at which point the reverse execution is performed. In response to a short press of the pause button, the game timer is paused, and the middle dividing point in the display module is controlled to flash. In pause mode, a long press of the red or blue adjustment button will enter the individual time adjustment mode for the red or blue side. The match time for the corresponding side can be adjusted by using the plus, minus, and shift / reset buttons. A short press of the red or blue adjustment button will exit the individual time adjustment mode and save the settings. In response to a long press of the shift reset button, the current game ends and the red team's game time and the blue team's game time are reset to the set game time; In response to the over-line alarm signal received by the over-line detection interface, the voice module is controlled to broadcast an over-line warning.

2. The match timer according to claim 1, characterized in that, The control module is also configured to: Upon powering on or after the current match ends, the long press of the setting key enters the match time setting mode, controlling the last digit of the display unit in the red team and the display unit in the blue team to flash. The set match time is adjusted in response to the plus or minus key; In response to a short press of the shift reset key, the second units digit, second tens digit, minute units digit, and minute tens digit are selected cyclically. In response to a short press of the setting key, the system exits the match time setting mode and saves the set match time so that the saved match time is automatically loaded upon the next power-on.

3. The competition timer according to claim 2, characterized in that, The control module is also configured to: In the match time setting mode and the time individual adjustment mode, a short press of the shift reset button is used for shift selection, a long press of the shift reset button is used to end the current match, and a long press of the pause button and the start button are both ineffective.

4. The match timer according to claim 2, characterized in that, The voice module is configured as follows: When entering the match time setting mode, a first prompt word indicating the setting of the match time is broadcast at a first volume; when starting the match, a second prompt word indicating the start of the match is broadcast at a second volume; when pausing the match, a third prompt word indicating the pause of the match is broadcast at a second volume; when entering the red or blue side time adjustment mode, a fourth prompt word indicating the red side time adjustment or the blue side time adjustment is broadcast at a first volume; and when ending the current game, a fifth prompt word indicating the end of the current game is broadcast at a second volume, wherein the second volume is greater than the first volume.

5. The match timer according to claim 1, characterized in that, The control module is also configured to: After the game is paused, a short press of the start button will resume the game timer and re-unlock the red and blue independent buttons. During the game timer or in a paused state, a long press of the shift reset button will end the game.

6. The match timer according to claim 1, characterized in that, The control module is also configured to: When there are 3 minutes remaining in the match time for either the red or blue team, the voice module is controlled to broadcast the sixth prompt at a second volume, indicating that the red team should pay attention to the match time or the blue team should pay attention to the match time. When the match time for either the red or blue team is 0, the voice module is controlled to broadcast the seventh prompt at a second volume, indicating that the red team has exceeded the match time or the blue team has exceeded the match time. When the crossing alarm signal is received, the voice module is controlled to broadcast the eighth prompt at a second volume, indicating a crossing warning.

7. The match timer according to claim 1, characterized in that, It also includes an alarm light and a horn connected to the control module; the alarm light is used to generate an alarm light signal when the over-line alarm signal is received, and the horn serves as the output component of the voice module; the over-line detection interface is used to connect to the over-line signal sensor.

8. The match timer according to claim 1, characterized in that, The power module is equipped with a TYPE-C power interface that is electrically connected to the control module; the display module includes a red screen and a blue screen, the red screen constituting the red square display unit and the blue screen constituting the blue square display unit; the button module is connected to the control module through a button interface, and the independent red square button and the independent blue square button are respectively connected to the control module through the red square button interface and the blue square button interface.

9. The match timer according to claim 1, characterized in that, The control module, the display module, the button module, the voice module, the line crossing detection interface, and the power module are all integrated on the same PCB board.

Images